A) 168
B) 169
C) 168.92
D) 169.18
Correct Answer: D
Solution :
[d] Given, \[169=\frac{\Sigma x}{50}\] Correct value is 143. Hence, sum is short by 9. \[\therefore M=\frac{169\times 50+9}{50}=169+\frac{9}{50}=169.18\]You need to login to perform this action.
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