Question: Problem 1 2 - 9 Calculating Returns and Variability ( LO 1 ) You've observed the following returns on Regina Computer's stock over the past

Problem 12-9 Calculating Returns and Variability (LO1)
You've observed the following returns on Regina Computer's stock over the past five years: 11%,-10%,19%,18%, and 10%.
a. What was the arithmetic average return on Regina's stock over this five-year perlod? (Round the final answer to 1 decimal place.)
Average return %
b-1. What was the varlance of Regina's returns over this period? (Do not round Intermedlate calculations. Round the final answer to 5 decimal places.)
Varlance (3)
b-2. What was the standard deviation of Regina's returns over this perlod? (Do not round Intermedlate calculations. Round the final answer to 1 decimal place.)
Standard deviation
Problem 12-9 Calculating Returns and Variability (LO1) You've observed the following

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