http://www.ck12.org Chapter 3. Introduction to Discrete Random Variables
Say you are going to spin a spinner 2 times and that the colors green, yellow, and purple are equally represented. Let
the variableXbe the number of times your spinner lands on green. The table below lists all of the possible events
that can occur from the spins.
TABLE3.9:
Trial First Spin Second Spin X
1 G G 2
2 G Y 1
3 G P 1
4 Y G 1
5 Y Y 0
6 Y P 0
7 P G 1
8 P Y 0
9 P P 0- What is the probability that the spinner doesn’t land on green on either of the spins?
- What is the probability that the spinner lands on green on 1 of the spins?
- What is the probability that the spinner lands on green on both of the spins?
- Create the histogram for this scenario on your TI calculator.
- Use the TRACE feature of your TI calculator to show the probability that the spinner doesn’t land on green
on either of the spins. - Use the TRACE feature of your TI calculator to show the probability that the spinner lands on green on 1 of
the spins. - Use the TRACE feature of your TI calculator to show the probability that the spinner lands on green on both
of the spins.