During the past six months, 73.2 percent of U.S. households purchased sugar. Assume that these expenditures are approximately normally distributed with a mean of $8.22 and a standard deviation of $1.10. What proportion of the households spent between $5.00 and $9.00 on sugar?
A) .7611
B) .7628
C) .0017
D) .7592

Question

Quizplus · Accepted Answer

P(5 < X < 9) = p= p= p(−2.93 < x < .71)
= .7609 − .0017 = .7592

During the Past Six Months, 73