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The amount of time to complete a physical activity in a PE class is approximately...

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The amount of time to complete a physical activity in a PE class is approximately normally distributed with a mean of 34.7 seconds and a standard deviation of 6.9 seconds. a) What is the probability that a randomly chosen studentcompletes the activity in less than 29.7 seconds?b) What is the probability that a randomly chosen studentcompletes the activity in more than 40.7 seconds?c) What proportion of students take between 31 and 40.4 secondsto complete the activity?d) 75% of all students finish the activity in less than 44.71seconds.

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