### What proportion of households spent between a range

Assignment Help Basic Statistics
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In a recent year, about two-thirds of US households purchased ground coffee. Consider the annual ground coffee expenditures for households purchasing ground coffee, assuming that these expenditures are approximately distributed as a normal random variable with a mean of \$65.16 and a standard deviation of \$10.00.

a. Find the probability that a household spent less than \$35.00.

b. Find the probability that a household spent more than \$60.00.

c. What proportion of the households spent between \$40.00 and \$50.00.

d. 99% of the households spent less than what amount?

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