Math Problem Statement
The last four years of returns for a stock are as follows:
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.
a. What is the average annual return?
b. What is the variance of the stock's returns?
c. What is the standard deviation of the stock's returns?
Question content area bottom
Part 1
a. What is the average annual return?
The average annual return is
enter your response here%.
(Round to two decimal places.)
Part 2
b. What is the variance of the stock's returns?
The variance of the stock's returns is
enter your response here.
** (Round to five decimal places.)
Part 3
c. What is the standard deviation of the stock's returns?
The standard deviation of the stock's returns is
enter your response here%.
(Round to two decimal places.)Year 1 2 3 4
Return (%) -3.69 28.44 12.38 4.48
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Stock Return Analysis
Arithmetic Mean
Variance
Standard Deviation
Formulas
Average Return: (r1 + r2 + r3 + r4) / 4
Variance: [(r1 - avg)^2 + (r2 - avg)^2 + (r3 - avg)^2 + (r4 - avg)^2] / 4
Standard Deviation: sqrt(Variance)
Theorems
Statistical Measure of Central Tendency and Dispersion
Suitable Grade Level
Grades 10-12
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