Question 1198373
.
According to the National Health Survey, American men’s heights are normally
distributed with the mean 𝜇 = 69.7 inches and the standard deviation 𝜎 = 2.8 inches.
Part a. A man is randomly selected. Find the probability that his height is more than 72
inches.
Part b. A man is randomly selected. Find the probability that his height is between 68 and 72
inches.
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<pre>
(a)  Normal distribution is a bell-shaped curve.

     In part (a), they want you determine the area under this specified curve 
     to the right from the raw mark of 72


     P = normalcfd(72, 9999, 69.7, 2.8) = 0.2057   (rounded).    <U>ANSWER</U>



(b)  In part (b), they want you determine the area under this specified curve 
     between the raw marks of 68 and 72


     P = normalcfd(68, 72, 69.7, 2.8) = 0.5224   (rounded).    <U>ANSWER</U>
</pre>

Solved.


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https://onlinestatbook.com/2/calculators/normal_dist.html