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the avarage i need a and b please The average monthly cable bill in 2016 has been reported to be $112. Assume monthly cable bills

the avarage

i need a and b

please

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The average monthly cable bill in 2016 has been reported to be $112. Assume monthly cable bills follow a normal distribution with a standard deviation of $8.75. a. What is the probability that a randomly selected bill will be 1. less than $110? 2. less than $120? 3. exactly $120? 4. between $105 and $115? b. Which monthly cable bill represents the 75th percentile? a. 1. The probability is (Round to four decimal places as needed.)

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