00:01
Okay, here's your normal curve showing the distribution of heights of basketball players.
00:07
The mean is 79, that goes in the middle every time, and the standard deviation or sd is 3 .5.
00:15
Now, what's meant by saying p of h more than 84 is the chance that a player has a height above 84 inches.
00:24
And 84 will be over here somewhere, and i want to work out this area over here.
00:30
The entire area is one.
00:33
So this represents the chance that a player is above 84 inches in height.
00:40
And to work that out, what i do is on the ti -84 -plus, for example, i press second vars, v -a -r -s, that is under the arrow key.
00:54
And that brings up the menu for distribution.
00:58
And what you want is normal cdf...