In the country of United States of Heightlandia, the height measurements of ten-year-old children are approximately normally distributed with a mean of 55.7 inches, and standard deviation of 5.2 inches. What is the probability that the height of a randomly chosen child is between 49.5 and 67.2 inches? Do not round until you get your your final answer, and then round to 3 decimal places.

Step-by-step explanation:

We define X the random variable that represent the heights of a population for ten year old children, and for this case we know the distribution for X is given by:

Where and

We want to find this probability:

We can use the z score formula to solve this problem given by:

Using this formula we have:

And we can find this probability with this difference

We can use tables for the normal standard distribution, excel or a calculator and we got this

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step-by-step explanation:

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