Question

Normal distribution height of men with a mean of 70.7 inches and a standard deviation of 1.5 inches. If a one man is randomly selected find the probability his height is between 60.5 inches and 74.1 inches.

*note: please use ti-84 and show all steps taken.

Answer 1

=70.7 , =1.5, n=1

We want to find (60.5 X 74.1)

steps for TI-84 calculator as follows

1) press button 2nd

2) press button VARS

3) scroll down to normalcdf() function and press button ENTER

4) now enter values as follows

lower :60.5

upper:74.1

: 70.7

: 1.5,

then click on  PASTE

5) you will get screen as follows

6) now press button ENTER we get result.

probability = 0.9883