The median wait time is 12 minutes The probability of waitin

The median wait time is 12 minutes. The probability of waiting more than 12 minutes is 84.1% The probability of waiting between 6 and 8 minutes is 15.9%. The probability of waiting more than 8 minutes but less than or equal to 12 minutes is 68.2%. LETS Market Research surveyed 50 individuals who recently purchased a certain DVD, reveallingthe age distribution shown below. Which statement is least defensible? The mean age probably exceeds the median age. The mode would be a reasonable measure of center. The data are somewhat skewed towards lower ages. The DVD is unlikely to appeal to senior citizens age 65 and up. Segal Financial Corporation wants to ensure that their email service has 99.98 percent relia They plan to use several independent servers in parallel, each of which is 95 percent reliab is the smallest number of email servers that when used together yield a probability that the simultaneously of 0 .02 percent or less?

Solution

18.

It appears that the answer is OPTION A. It\'s hard to tell if the mean exceeds the median just by looking at the graph.

OPTION D is defensible, as we see the rapid decrease from 20-24, so we do expect that at age 65.

[ANSWER IS OPTION A]