(i) If the number of observations is even, then the median is mean of \[{{\left( \frac{n}{2} \right)}^{th}}\]and\[{{\left( \frac{n}{2}+1 \right)}^{th}}\]terms. |
(ii) After four vertical lines for a tally marks, if the tally marks occurs for the fifth time, then the fifth line is put vertically with previous four lines. |
(iii) If the range of the data with minimum value 16, is 87, then the maximum value is 71. |
(iv) Mode of the data, 14, 71, 51, 91, 15, 2, 15, 51, 19, 41, 51, 15, 51 is 51. |
(v) Mean of first ten natural numbers is 5.5 |
A)
(i) (ii) (iii) (iv) (v) T F T T T
B)
(i) (ii) (iii) (iv) (v) F F T T T
C)
(i) (ii) (iii) (iv) (v) T F F T T
D)
(i) (ii) (iii) (iv) (v) T F T F T
Correct Answer: C
Solution :
(i) is true. (ii) If the tally mark occurs for the fifth times then the four lines marked earlier are crossed by an oblique line as (iii) Range =Maximum value- Minimum value 87 = Maximum value Maximum value = 87 + 16 =103 (iv) 51 occurs most of the times i.e., 4 times. So, 51 is the mode. (v) MeanYou need to login to perform this action.
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