00:01
Okay, you are told the sat scores follow a normal curve with the mean 1460 in the center as usual, and a standard deviation of 302.
00:13
And i want to work at the percentage of students who qualify for the college, i .e.
00:20
The ones who score above 1 -2 -4 -9.
00:24
I want to work out this area above 1 -249.
00:30
The entire area under the curve is 1 or 100%.
00:36
So find the green area, that's the answer.
00:40
Now, to do that, use a calculator, the ti 84 plus and the input function is normal cdf.
00:53
And to get that, you press second, followed by vars, vars, just below the arrow keys.
01:00
That brings up the menu for distributions.
01:05
What you want is number two, normal cdf...