CK-12-Basic Probability and Statistics Concepts - A Full Course

http://www.ck12.org Chapter 3. Introduction to Discrete Random Variables

Now that the spinner is set up for 500 trials, choose SPIN by pressing

WINDOW

. Since we’ve chosen a large number of spins, the spinning may take a while!

We can see the result of each trial by choosing TABL, or pressing

GRAPH

.

And we see the graph of the resulting table, or go back to the first screen, simply by choosing GRPH, or pressing

GRAPH

again.

Now, the question asks how many times we landed on blue (number 1). We can actually see how many times we
landed on blue for these 500 spins. If you press the right arrow

(

I

)

, the frequency label will show you how many of the times the spinner landed on blue (number 1).