Weight (in kgs) | 67 | 70 | 72 | 73 | 75 |
Number of students | 4 | 3 | 2 | 2 | 1 |
A) 70.36
B) 70.89
C) 70.25
D) None of these
Correct Answer: C
Solution :
From the given table,x | f | \[{{x}_{i}}{{f}_{i}}\] |
67 | 4 | 268 |
70 | 3 | 210 |
72 | 2 | 144 |
73 | 2 | 146 |
75 | 1 | 75 |
n = 12 | \[\sum{{{x}_{i}}{{f}_{i}}=843}\] |
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