An investor wants to determine the safest way to structure a portfolio from several investments. investment a produces an average annual return of 14% with a variance of 0.025. investment b produces an average rate of return of 9% with a variance of 0.015. investment c produces an average rate of return of 8% with a variance of 0.010. investments a and b have a covariance of 0.00028, and investments a and c have a covariance of -0.006. investments b and c have a covariance of 0.00125.

Two students were asked if they liked to read. is this a good example of a statistical question? why or why not? a yes, this is a good statistical question because a variety of answers are given. b yes, this is a good statistical question because there are not a variety of answers that could be given. c no, this is not a good statistical question because there are not a variety of answers that could be given. no, this is not a good statistical question because there are a variety of answers that could be given