Mathematics, 08.05.2021 01:00, beaniewastaken

A spinner has two colored regions — purple and orange — and is divided in such a way so that the probability that the spinner lands on purple is 0.9. Suppose we spin the spinner 12 times and let X = the number of times it lands in the purple region. Calculate the mean and standard deviation of X. Round to 4 decimal places, when necessary.

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A spinner has two colored regions — purple and orange — and is divided in such a way so that the pro...