In the united states the average cost per person on health care in one year is $5190. The distribution of health care cost is approximately normal and the standard deviation for all costs is $550. What is the probability a randomly selected person has a cost that is at least 4220?

M=

Q=

P()

Z=

Select your normal distribution curve with correct shading

For this problem will we use infvnorm () or normalcdf()

P() = %

Explain the answer in words

The probability that __________________ ____________ $______________ is _________________ %