CFA Practice Question

There are 410 practice questions for this study session.

CFA Practice Question

The sample variance based on the following data points: -6.0 percent, 5.8 percent, 8.4 percent, and 9.7 percent, is closest to ______.
A. 0.000360
B. 0.003855
C. 0.005140
Explanation: The sample mean is calculated as (-6.0% + 5.8% + 8.4% + 9.7%)/4 = 4.48% and the sample variance is ([-6.0% - 4.48%]2 + [5.8% - 4.48%]2 + [8.4% - 4.48%]2 + [9.7% - 4.48%]2) / (4-1) = 0.005140.

User Contributed Comments 1

User Comment
nickluca24 You can use the calculator for this problem

->2nd, 7 (Data)
->2nd, CE|C (Clr Work)
X01 = -.06
X02 = .058
X03 = .084
X04 = .097
->2nd, 8 (Stat)
->go down to Sx
-> square Sx (Sx * Sx)
Explained, Sx = sample standard deviation
Var = sd squared
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