Textbook ExpertVerified Tutor
29 Oct 2021
Given information
Given that the amount of time spent alone by a four-year-old child is normally distributed with mean 3 hours and standard deviation 1.5 hours.
Step-by-step explanation
Step 1.
The random variable can be defined as,
Number of hours that a Chinese four-year-old in a rural area is unsupervised during the day.
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