-1. Plug in -3 for x which makes 9-10 so -1
The answer i thinkkk would be,
x < -1
What are the options? But I think a good estimate is $700.
Answer:
The probability that a randomly selected monthly cell phone bill is less than $95 is 0.9772
Step-by-step explanation:
The average monthly household cellular phone bill is $73.

Local monthly household cell phone bills are normally distributed with a standard deviation of $11.

We are supposed to find the probability that a randomly selected monthly cell phone bill is less than $95 i.e.P(x<95)


Z=2
Refer the z table for p value
So,p value = 0.9772
Hence the probability that a randomly selected monthly cell phone bill is less than $95 is 0.9772