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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
30 Oct 2021

Given information

Given that the amount of time spent alone by a four-year-old Chinese child is normally distributed with mean of 3 hours and standard deviation of 1.5 hours.

Step-by-step explanation

Step 1.

The probability that the children spend over ten hours per day unsupervised is,

 

 

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