00:01
The question says based on data from the nutritional health survey, women between the ages of 18 and 24 have an average systolic blood pressure of 114 .8 with a standard deviation of 13 .1.
00:17
So systolic blood pressure for women between the ages for 18 to 24 follow, normal distribution will be.
00:25
So here is given.
00:29
First of all, average, that means mean.
00:32
Mew is equal to 114 .8 and standard deviation is 13 .1.
00:39
So if one woman from this population is randomly selected, then find the probability that the systolic blood pressure is greater than 120.
00:49
Now based on data, according to the provided details, the average blood pressure of women ages between 18 and 24 is 114 .8 and 13 .1 is 13 .1 is standard.
01:02
Standard deviations so i have to calculate the probability of systolic blood pressure that means probability of x greater than 120 so for this we have to use ti eighty three calculator so it will be click on the then dia star use ti eighty three calculator use ti eighty three calculator now i will say this stepwise how what you have type so for this click on second click on second then d i s t r and then scroll down scroll down to the cdf option normal cdf option and enter the provided details enter the provided details after this click on click on enter button enter button of calculator of calculator to have the desired result have the desired result so the first part of the probability will be probability of x greater than 120 is 1 minus 0 .6542.
03:15
Now 0 .6542 is the value you will get from calculator.
03:20
This is 0 .3458.
03:23
Now coming to the second part of questions to calculate the probability of 40 women's systolic blood pressures...