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The age of Facebook users is normally distributed. The average age of a user on Facebook...

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The age of Facebook users is normally distributed. The averageage of a user on Facebook is 40.5 with a standard deviation of 10.1. What is the probability that a single randomly selected personthat is on Facebook is less than 20 years of​ age? (round to four​decimals) nothing 2. What is the probability that a sample of 15Facebook useres is between 30 and 40 years of​ age?

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