Predictions with Probability

Predictions with Probability

> Students will be able to evaluate a prediction using probability.

> Students will write and solve percent expressions and proportions.​

Review
Basic Probability

Multiple Choice

A regular 6-sided die is to be rolled once. What is the probability that a number less than 3 is rolled?

• 1/3

• 1/6

• 1/2

• 2/3

Multiple Choice

Find the probability of rolling a 7 on a single die.

• 1/6

• 7/6

• 0

• 7/7

Multiple Choice

A dice was rolled five times and the following were rolled: 1, 3, 3, 4, 4

Based on this information, find the experimental P(1).

• 3/5

• 1/6

• 2/5

• 1/5

Multiple Choice

What is the P( not purple) on this spinner?

• 2/5

• 1/5

• 4/5

• 3/5

Multiple Choice

The chart below represents the number of marbles in a jar.

P(green) =

• 5/19

• 1/5

• 5/14

Multiple Choice

If you select a marble without looking, how likely is it that you will pick a black one?

• certain

• probable

• unlikely

• impossible

Predictions with
Probability

Multiple Choice

A bag contains 6 red and 10 black marbles. If you pick a marble, record its color, and return it to the bag, how many times can you expect to pick a black marble if you do the experiment 200 times?

• 120

• 60

• 125

• 160

Multiple Choice

These 12 shapes are put into a bag.  If you reach into the bag 60 times, replacing the shape after each time, predict how many times you would pull out a circle.

• 15 times

• 20 times

• 25 times

• 30 times

Multiple Choice

A tennis player hits a serve that cannot be returned 45 percent of the time. Out of 300 serves, how many can you predict will not be returned?

• 400

• 300

• 240

• 135

Multiple Choice

The experimental probability that an SUV will pass by Ariel's store is 0.4.

If 500 cars pass by Ariel's store, predict how many will be SUVs.

• 200

• 100

• 20

• 150

Multiple Choice

Shannon has a bag of jelly beans, that has:

5 are green, 2 are red, & 3 are blue.

She removed one jelly bean, recording the color, and then replaced it. She repeated the process 44 times and record her results in the table.

What is the EXPERIMENTAL probability of her selecting a red jelly bean?

• 11/44

• 2/10

• 1/5

• 23/30

Multiple Choice

If the coin was flipped a total of 120 times, predict what is the experimental probability of landing on heads? (hint:set up a proportion)

• 13

• 65

• 42

• 68