A discrete random variable has a mean of 400 and a variance of 64. What is the standard deviation?

Which of the following audit procedures would most likely be used to test the mathematical accuracy of a five-hundred page inventory listing?

A) Send confirmations to selected vendors to verify amounts. B) Examine a random sample of inventory documents. C) Manually foot, or sum, several randomly-selected pages. D) Use generalized audit software to foot, or sum, the entire listing.

The need for marketing research is affected by the company policy toward its use

Indicate whether the statement is true or false