Question: I've gotten help by 2 others and they've gotten the same answer as I have for the SD which we all have gotten 2.89.. and

I've gotten help by 2 others and they've gotten the same answer as I have for the SD which we all have gotten 2.89.. and it's still saying it's incorrect.

The number of tickets purchased by an individual for Beckham College's holiday music festival is a uniformly distributed random variable ranging from 4 to 14. Find the mean and standard deviation of this random variable. (Round your answers to 2 decimal places.) Mean 9 Standard deviation

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