USING EXCEL FORMULA Round your answers to 4 decimal places. According to CBS Money Watch, the...

USING EXCEL FORMULA

Round your answers to 4 decimal places.

According to CBS Money Watch, the average monthly household cellular phone bill is $100. Suppose monthly household cell phone bills are normally distributed with a standard deviation of $11.35.

What is the probability that a randomly selected monthly cell phone bill is more than $127?
What is the probability that a randomly selected monthly cell phone bill is between $87 and $110?
What is the probability that a randomly selected monthly cell phone bill is no more than $82?

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orchestra answered 1 year ago

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