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question_answer1)
Which of the following is the number of times a particular item occurs in a class interval?
A)
Mean done
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B)
Frequency done
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C)
Cumulative frequency done
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D)
Median done
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question_answer2)
What are the groups into which large data is condensed called?
A)
Class limits done
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B)
Classes done
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C)
Class size done
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D)
Class width done
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question_answer3)
Find the mean of first 5 whole numbers.
A)
2.5 done
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B)
3 done
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C)
1.5 done
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D)
2 done
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question_answer4)
The relative humidity (in %) of a city for 10 days is given in the box.
Determine its range.
A)
9.3 done
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B)
9.6 done
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C)
9.5 done
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D)
9.8 done
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question_answer5)
The demand for different shirt sizes, as obtained from a survey, is given in the table.
Size | 38 | 39 | 40 | 41 | 42 | 43 | 44 |
No. of persons | 26 | 36 | 230 | 15 | 13 | 7 | 5 |
Find the modal shirt size.
A)
39 done
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B)
40 done
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C)
44 done
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D)
42 done
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question_answer6)
The class marks of a frequency distribution are given as 15, 20, 25,............ Find the class corresponding to the class mark 20.
A)
12.5-17.5 done
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B)
17.5-22.5 done
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C)
18.5-21.5 done
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D)
19.5-20.5 done
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question_answer7)
Direction: The bar graph given shows the months of birthdays of 40 students of a class.
Answer the following questions based on the graph. |
How many students were born in August?
A)
6 done
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B)
4 done
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C)
5 done
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D)
3 done
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question_answer8)
Direction: The bar graph given shows the months of birthdays of 40 students of a class.
Answer the following questions based on the graph. |
In which month were the minimum number of students born?
A)
February done
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B)
June done
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C)
December done
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D)
May done
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question_answer9)
Direction: The bar graph given shows the months of birthdays of 40 students of a class.
Answer the following questions based on the graph. |
In which months were at least 5 students born?
A)
June and October done
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B)
March and November done
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C)
February and September done
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D)
May and August done
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question_answer10)
Direction: The bar graph given shows the months of birthdays of 40 students of a class.
Answer the following questions based on the graph. |
In which months was the difference in the number of students born the same as that in October and November?
A)
February and January done
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B)
May and July done
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C)
March and April done
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D)
August and September done
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question_answer11)
Find the median of the first ten prime numbers.
A)
24 done
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B)
14 done
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C)
12 done
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D)
22 done
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question_answer12)
In a school 90 boys and 30 girls appeared for a public examination. The mean marks of boys was found to be 45% whereas the mean marks of girls was 70%. What is the average marks % of the school?
A)
61.50% done
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B)
51.25% done
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C)
40.50% done
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D)
51.52% done
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question_answer13)
What is a graph drawn with the midpoints of the top sides of the rectangles forming the histogram of a frequency distribution called?
A)
Bar graph done
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B)
Ogive done
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C)
Frequency polygon done
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D)
Frequency curve done
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question_answer14)
What do you call the value in a data around which the values of all the other observations tend to concentrate?
A)
Common value done
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B)
Range done
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C)
Measure of central tendency done
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D)
Midvalue done
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question_answer15)
Of the class intervals 10 - 20 and 20 - 30, the number 20 is included in which of the following?
A)
10-20 done
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B)
20-30 done
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C)
15-20 done
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D)
Both (a) and (b) done
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question_answer16)
Find the arithmetic mean of 30,36,39,23 and 27.
A)
28 done
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B)
20 done
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C)
31 done
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D)
35 done
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question_answer17)
The median of given observations arranged in ascending order is 25.
Find p,
A)
22 done
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B)
24 done
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C)
21 done
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D)
26 done
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question_answer18)
Which one of the following is not a measure of central tendency?
A)
Mean done
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B)
Range done
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C)
Median done
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D)
Mode done
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question_answer19)
Direction: The following is a chart showing the temperature of a patient recorded at different times.
Read the temperature chart and answer the given questions. |
What is the temperature of the patient at 21 hrs?
A)
100°F done
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B)
101°F done
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C)
102°F done
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D)
103°F done
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question_answer20)
Direction: The following is a chart showing the temperature of a patient recorded at different times.
Read the temperature chart and answer the given questions. |
What is the percentage increase in temperature between 9 hrs and 15 hrs?
A)
4% done
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B)
3% done
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C)
2% done
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D)
1% done
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question_answer21)
Direction: The following is a chart showing the temperature of a patient recorded at different times.
Read the temperature chart and answer the given questions. |
What is the percentage decrease in temperature between 17 hrs and 19 hrs?
A)
1.02% done
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B)
1.03% done
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C)
1.04% done
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D)
1.01% done
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question_answer22)
Direction: The following is a chart showing the temperature of a patient recorded at different times.
Read the temperature chart and answer the given questions. |
What is the average temperature of the patient between 13, 15 and 17 hrs?
A)
\[103{}^\circ F\] done
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B)
\[102{}^\circ F\] done
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C)
\[101{}^\circ F\] done
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D)
\[100{}^\circ F\] done
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question_answer23)
The mean of first 8 observations is 18 and last 8 observations is 20. If the mean of all 15 observations is 19, find the 8th observation.
A)
18 done
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B)
12 done
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C)
19 done
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D)
20 done
clear
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question_answer24)
A grouped frequency distribution table with classes of equal sizes using 63 ? 72 (72 included) as one of the classes is constructed for the following data.
Find the number of classes in the distribution.
A)
9 done
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B)
11 done
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C)
10 done
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D)
12 done
clear
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question_answer25)
The mid-point of a class is m and \[l\] is the upper class limit in a continuous frequency distribution. Which of the following would be the lower class limit of the class?
A)
\[2m+l\] done
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B)
\[2m-l\] done
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C)
\[m-l\] done
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D)
\[m-2l\] done
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question_answer26)
The width of each of nine classes in a frequency distribution is 2.5 and the lower class boundary of the lowest class is 10.6. What is the upper class boundary of the highest class?
A)
35.6 done
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B)
33.1 done
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C)
30.3 done
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D)
28.1 done
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question_answer27)
In a frequency distribution, the mid value of a class is 10 and the width of the class is 6. What is the lower limit of the class?
A)
6 done
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B)
7 done
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C)
8 done
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D)
12 done
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question_answer28)
In a frequency distribution, ogives are graphical representation of which of the following?
A)
Frequency done
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B)
Relative frequency done
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C)
Cumulative frequency done
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D)
Raw data done
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question_answer29)
Apart from plotting frequencies of the class intervals, which of the following are used to construct a frequency polygon?
A)
Upper limits of the classes done
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B)
Lower limits of the classes done
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C)
Any values of the classes done
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D)
Mid values of the classes done
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question_answer30)
The mean wage of 150 labourers working in a factory running three shifts with 60, 40 and 50 labourers is Rs. 114. The mean wage of 60 labourers working in the first shift is Rs. 121.50 and that of 40 labourers working the second shift is Rs. 107.75. Find the mean wage of those who are working in the third shift.
A)
Rs. 110 done
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B)
Rs. 100 done
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C)
Rs. 120 done
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D)
Rs. 115.75 done
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question_answer31)
The mean of n observations is\[\overrightarrow{X}.\]If each observation is multiplied by k. what is the mean of new observations?
A)
\[k\,\bar{X}\] done
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B)
\[\,\bar{X}\] done
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C)
\[\,\bar{X}+k\] done
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D)
\[\,\bar{X}-k\] done
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question_answer32)
The mean of 75 numbers is 25. If each number is divided by 5, find the new mean.
A)
5 done
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B)
20 done
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C)
8 done
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D)
15 done
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question_answer33)
For which set of numbers do the mean, median and mode have the same value?
A)
2,2,2,4 done
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B)
1, 3, 3, 3, 5 done
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C)
1, 1, 2, 5, 6 done
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D)
1, 1, 1, 2, 5 done
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question_answer34)
Find the difference between arithmetic means of all even and odd numbers between 50 and 60.
A)
2 done
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B)
0 done
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C)
1 done
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D)
3 done
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question_answer35)
For the set of numbers 2, 2, 4, 5 and 12 which of the following statements is true?
A)
Mean = Median done
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B)
Mean > Mode done
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C)
Mean < Mode done
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D)
Mode = Median done
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question_answer36)
A cricketer has a mean score of 60 runs in ten innings. Find the number of runs that are to be scored in the eleventh inning to raise the mean score to 62.
A)
62 done
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B)
78 done
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C)
58 done
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D)
82 done
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question_answer37)
Which of the following is the empirical relation between mean, mode and median?
A)
Mode = 3 Median - 2 Mean done
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B)
Mode = 2 Median - 3 Mean done
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C)
Median = 3 Mode - 2 Mean done
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D)
Mean = 3 Median - 2 Mode done
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question_answer38)
Find the median of the data given.
A)
0 done
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B)
-1.5 done
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C)
2 done
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D)
3.5 done
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question_answer39)
The mean of 20 numbers is 40. If 5 is subtracted from every number, what will be the new mean?
A)
45 done
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B)
40 done
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C)
20 done
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D)
35 done
clear
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question_answer40)
The mean of a, b, c, d and e is 28. If the mean of a, c, and e is 24, what is the mean of b and d?
A)
31 done
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B)
32 done
clear
C)
33 done
clear
D)
34 done
clear
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question_answer41)
What is the algebraic sum of the deviations of a set of n values from their mean?
A)
0 done
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B)
n-1 done
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C)
n done
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D)
n+1 done
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question_answer42)
The mean of 50 observations was 250. It was detected on checking that the value of 165 was wrongly copied as 115 for computation of mean. Find the correct mean.
A)
215 done
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B)
151 done
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C)
156 done
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D)
251 done
clear
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question_answer43)
The mean of the data \[{{x}_{1}},{{x}_{2}},{{x}_{3}},....{{x}_{n}}\]is 'a' Find the mean of the data\[{{x}_{1}}+{{\alpha }_{1}},{{x}_{2}}+\alpha ,{{x}_{3}}+\alpha ,...,{{x}_{n}}+\alpha \]
A)
\[a+\alpha \] done
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B)
\[a\,\alpha \] done
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C)
\[a+\,\alpha \] done
clear
D)
\[a-\,\alpha \] done
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question_answer44)
If the mean of 9 observations p, p + 2, p+4,p+6,p+8,p-2,p-4,p-6 and p 8 is 10. Find the mean of the least 5 observations.
A)
6 done
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B)
25 done
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C)
10 done
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D)
9 done
clear
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question_answer45)
The median of the data 26, 56, 32, 33, 60, 17, 34, 29, 45, is 33. If 26 is replaced with 62, what is the new median?
A)
34 done
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B)
29 done
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C)
32 done
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D)
33 done
clear
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question_answer46)
The mean of 6 numbers is 20. If one number is deleted, their mean is 15. Find the deleted number.
A)
45 done
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B)
52 done
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C)
20 done
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D)
36 done
clear
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question_answer47)
The number of children in 10 families of a locality are 1, 4, 3, 3, 4, 2, 2, 3, 3 and 5. Find the mean number of children per family.
A)
3 done
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B)
4 done
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C)
1 done
clear
D)
2 done
clear
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question_answer48)
The mean of some observations is 50. If their sum is 600, what is the number of observations?
A)
8 done
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B)
12 done
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C)
16 done
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D)
10 done
clear
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question_answer49)
P Find the class mark of the class 90 -120.
A)
90 done
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B)
105 done
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C)
115 done
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D)
120 done
clear
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question_answer50)
If the mean of the given data is 5.3, find the missing frequency 'p'.
\[x\] | 4 | 8 | 6 | 7 |
\[f\] | 11 | 2 | 3 | p |
A)
1.7 done
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B)
3 done
clear
C)
6.8 done
clear
D)
4 done
clear
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