- The Monthly Utility Bills In A City Are Normally Distributed With A Mean Of 100 And A Standard Deviation Of 13 Find 1 (56.14 KiB) Viewed 22 times
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find
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The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find
The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find the probability that a randomly selected utility bill is (a) less than $66, (b) between $80 and $110, and (c) more than $130. (a) The probability that a randomly selected utility bill is less than $66 is 0.0045 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $80 and $110 is 0.7172 (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $130 is 0.0105¹ (Round to four decimal places as needed.)