(Answered) The monthly utility bills in a city are normally

Statistics

The monthly utility bills in a city are normally distributed with a mean of $121 and a standard deviation of $23. Find the probability that a randomly selected utility bill is between $115 and $130.

Probability of 0.07 and would warrant a refund
Probability of 0.93 and would warrant a refund
Probability of 0.07 and would not warrant a refund
Probability of 0.93 and would not warrant a refund

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