CompTIA Data+ (DA0-001) — Question 105

Five dogs have the following heights in millimeters:

300, 430, 170, 470, 600

Which of the following is the standard deviation for the five dogs?

Answer options

• A. 147mm
• B. 154mm
• C. 394mm
• D. 21,704mm

Correct answer: A

Explanation

The standard deviation measures the amount of variation or dispersion in a set of values. In this case, the correct calculation yields 147mm, which represents the spread of the heights from the mean. The other options do not accurately reflect the statistical calculation for this data set.