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A dating app swiping-left rate (not interested) has a normal distribution with an average of 20...

A dating app swiping-left rate (not interested) has a normal distribution with an average of 20 left-swipes per minute and a standard deviation of 4. 16 people are sampled at random and their number of left-swipes is recorded over one minute. Find the probability that the total number of left-swipes recorded from the sample is less than 352.

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