Question

There is a 50% chance that a volleyball team will win any one of its four remaining games this year.

A spinner with 2 equal sections numbered 1 (win) and 2 (loss) is used to simulate the probability that the team will win exactly two of its last four games. The results of the simulation are shown below.
1221 1121 2211 2121 2221 2212 1122 1111 1222 1112
Out of 10 trials, there are favorable outcomes. Based on the simulation, the probability that the team will win exactly 2 of its last 4 games is .

Convince Me!
Does the probability that the team will win two games change when “exactly” is replaced with “at least”? Explain.

Answer 1

1. 2

2. 50%

Convince Me: Yes, it will change, because there is still a small chance where they will lose all 4 games

Explanation: