Answer:
The correct option is b.
Step-by-step explanation:
The formula for standard deviation is

where,
is mean of the data and n is number of observation.
The variance of a stock's returns can be calculated by the above formula.
Variance of stock's returns is the average value of squared deviations from the mean.
Therefore the correct option is b.
Answer: Lemme get them socials
Step-by-step explanation: Was goof
Answer:
The answer is 3
Step-by-step explanation:
I put the answer simplified if needed.
Answer:
the third 1
Step-by-step explanation:
If you are solving for y the anser is 64