According to Cellular Telecommunication Industry Association, the average local monthly cell phone bill is $42.78. Suppose local monthly cell phone bills are normally distributed, with a standard deviation of $11.35.(i)What is the probability that a randomly selected cell phone bill is more than$67.75.(ii)What is the probability that a randomly selected cell phone bill is between $30 and $50.(iii)What is the probability that a randomly selected cell phone bill is not more than$25.
Answers
Answered by
0
Answer:
23.6
Explanation:
because it gets only 4 bill station and 0.2 committed
Similar questions