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Best Buy's data shows that every four in ten customers get warranty for their Nintendo Switch (a kid's game). Best Buy in Pasadena sold 15

Best Buy's data shows that every four in ten customers get warranty for their Nintendo Switch (a kid's game). Best Buy in Pasadena sold 15 customers the Nintendo Switch in July 2019.

  1. What is the probability that none of these customers got a warranty?
  2. What is the probability that more than 4 but less than 8 of these customers got a warranty?

3. Compute the mean and standard deviation of this probability distribution

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