Find the variance of a group of data whose standard deviation is 12.34 to the nearest whole number.
A
150
B
151
C
152
D
153
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
To find the variance from the standard deviation:
Given:
Standard deviation = 12.34
Variance = (12.34)\(^2\) = 152.2756
Rounding to the nearest whole number: Variance ≈ 152.
Source: WAEC / JAMB / NECO Classroom Archive (Record #70283)