Description
1. The average family of 4 has a grocery bill for a period of a week of $117.25 and a standard deviation of $32.85.Use this information to answer the following questions:
A. If you randomly select 36 families, what is the probability that the average bill will be more than $125?
B. If you randomly select 80 families, what is the probability that the average bill will be less than $121?
C. If you randomly select 120 families, what is the probability that the average bill will be between $115 and $120?
please use numbers from Z- table provided
