2.
The amount of health expenditures for a family of four follows a normal distribution with
a mean of $2,350 and a standard deviation of $740. Find the following:
a.
What is the probability that a family selected at random will have more than
$3,200 in health expenditures?
B.
What is the probability that a family will have less than $3,000 in healthcare
expenditures?
C.
What is the probability that a family will have between $2,000 and $3,000 of
expenses?
D.
Seventy percent of families spend more than what amount on healthcare?