00:01
Values have a mean of 782 and a standard deviation of 180.
00:04
They want us to use a calculator, the ti83 -84, to find the following probabilities.
00:10
So you need to know how to put this into your calculator.
00:13
First of all, you'll go to the distributions function, which is above the vars button on your calculator, and you're going to pick normal cdf because we're looking into cumulative.
00:24
Now, you need to make sure you put this in the right order after your parentheses.
00:30
You want to have your lower bound, which is 1375.
00:33
Your upper bound, well, we don't need an upper bound, but the calculator requires one.
00:38
So you want to put something fairly large for this situation...