00:01
Hi, i'm david and i'm here to help you answer your question.
00:04
Now let me bring up your question here.
00:07
In this question we're going to reveal about the normal distribution.
00:11
Let me remind you that if we have the x followed by the normal with the mean and the standard deviation, and if we take the x we minus the mean of the standard deviation, it will follow by the standard normal.
00:24
In this question here, we are given that the test score x it will follow by the normal.
00:31
With the mean equal to the 0 and the standard division equal to 1.
00:36
So therefore the x -it -cell here, it will be identical to the standard normal already.
00:44
And now the question asked let you draw the graph and find the probability on the bone density test score greater than 0 .171.
00:54
So first the 0 -1 71 will be on the right, so we will not consider the minus here for now...