Let x represent the dollar amount spent on supermarket impulse buying in a 10-minute (unplanned) shopping interval. Based on a certain article, the mean of the x distribution is about $44 and the estimated standard deviation is about $9.
What is the probability that x is between $42 and $46? (Round your answer to four decimal places.)
Let us assume that x has a distribution that is approximately normal. What is the probability that x is between $42 and $46? (Round your answer to four decimal places.)