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Mathematics, 20.05.2021 18:00 nolam123

A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a standard deviation of 4 minutes. Calculate the probability that a randomly selected person waited LESS THAN 18 minutes.

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A line up for tickets to a local concert had an average (mean) waiting time of 20 minutes with a sta...
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