Chapter 6, Problem 48PS

a.

To determine

Find the probability that a consumer spent less than $1,000 on consumer electronics.

b.

To determine

Find the probability that a consumer spent between $\$2500\text{ and \$3000}$ on consumer electronics.

c.

To determine

Determine the value of amount below which ninety percent of the amounts spent on consumer electronics by the mobile device owner who used their mobile device while shopping for consumer electronics lie.

d.

To determine

Find the two values of amount which are symmetrically distributed around the mean and between which eighty percent of the amounts spent on consumer electronics by mobile device owners who used their mobile device while shopping for consumer electronics lie.