Math Problem Statement

A stock experienced returns of 4 percent, −17 percent, and 12 percent during the last three years. What is the standard deviation of the stock's returns for the three-year period?

Solution

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Math Problem Analysis

Mathematical Concepts

Statistics
Stock Returns
Standard Deviation
Variance
Mean (Average)

Formulas

Mean = (Sum of returns) / Number of returns
Variance = (Sum of squared deviations from mean) / Number of returns
Standard Deviation = sqrt(Variance)

Theorems

Properties of Variance and Standard Deviation

Suitable Grade Level

College Level (Finance, Statistics)