# Practice Questions March 19th

• Thursday, March 19, 2020 - 6:30 PM
Practice questions

1. The random numbers below represent 10 trials of a math test simulation conducted using a spinner numbered 1-4.

1. 1,2,4,1
2. 1,2,1,3
3,2,1,3                                 4,1,2,2
2,1,2,2                                 3,1,1,2
1,3,2,3                                 1,1,3,3

Let the numbers 1-3 represent a student passing the test. Let the number 4 represent a student failing the test. Based on the simulation, what is the probability that at least one of the next 4 students will fail the test?

1. There is a bag of skittles. There are 20 yellow skittles, 14 red skittles, 22 green skittles, and 24 orange skittles. If you were to pick a skittle out of the bag, what is the probability the color is green?

The numerator is the amount of green skittles. The denominator is the total amount of skittles. Simplify your fraction and then divide to find the percent.

1. A spinner has equal sized sections labeled blue, green, win, orange, win, red, yellow, win. What is the sample space for the spinner?

Remember to list every section even if it repeats!!

1. A game has 20 squares with 4 squares of each color. The results of 400 games are shown below.
 Color Frequency Blue 83 Brown 71 Red 84 Purple 76 Tan 86

For which color is the experimental probability closest to the theoretical probability? Show me the theoretical probability. Then show me the experimental probability of each color. Then, find out which experimental probability is closest to the theoretical. You should have one theoretical probability, and five different experimental probabilities.

1. To play a board game, a player spins the pointer of a spinner with four equal sections numbered 1-4, and then flips a fair coin. Draw a tree diagram of the sample space.

The sample space for the spinner is (1,2,3,4). Put these numbers at the top of your tree diagram. Then, give each number two branches. Put the letter H on one branch and then the letter T on the other branch.