Assume that X is a normally distributed random variable with a mean of 50 and a standard deviation of 2. Find the probability that X is between 48 and 55

If a cross-elasticity with respect to price is positive then:

A) a product's sales increase when another product's price drops. B) a product's sales decline when another product's price drops. C) a product's sales decline when another product's price increases. D) a product's sales are independent of another product's price.

A vertical audit is often referred to as a "retailing mix" audit

Indicate whether the statement is true or false