Question

Asked Nov 14, 2019

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I'm lost..

Step 1

From the given information, mean (μ) = 97 minutes and standard deviation (σ) = 20minutes.

Let ‘X’ be a normal distribution random variable.

Step 2

(a) The probability that a randomly selected time interval between eruptions is longer than 105 minutes is,

Step 3

Therefore, the probability that a randomly selected time interva...

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