Lesson 3.6 Using Probability to Predict

You plant 20 marigold seeds and 12 of them grow into flowers that bloom. If you plant 10 more marigolds, predict how many would bloom.

• 6

• 5

• 4

• 3

Tags

CCSS.2.OA.A.1

Cameron threw three touchdown passes in one game out of 9 touchdown pass attempts. Find the experimental probability Cameron will throw a touchdown pass when attempted.

• 1/3

• 1/2

• 1/4

• 1/5

Tags

CCSS.7.SP.C.6

Cameron has 12 touchdown pass attempts in a game. Predict how many touchdown passes he completes.

• 0-2

• 3-5

• 6-8

• 9-12

Tags

CCSS.7.SP.C.6

Lana surveyed 30 students. She asked for their favorite type of movie. Their responses are below. Find the experimental probability a student will pick each of the four types of movies.

• 0.25 for each type

• 0.30 for each type

• 0.20 for each type

• 0.15 for each type

Tags

CCSS.7.SP.C.6

Use the probability in part a to predict how many students out of 60 students would choose drama as their favorite type of movie.

• 10 students

• 15 students

• 20 students

• 25 students

Tags

CCSS.7.SP.C.6

Rangers in Montana wanted to estimate the number of elk in a certain area. They tagged 20 elk one Saturday and sent them back to mix with the other elk in the area. The rangers went back once a month for the next three months and recorded the following. What is the estimated size of the elk population for the first month?

• 100

• 150

• 200

• 250

Tags

CCSS.7.SP.A.2

Find the average of the three estimates in part a.

• The average is the sum of the estimates divided by three.

• The average is the product of the estimates.

• The average is the difference between the highest and lowest estimate.

• The average is the sum of the estimates.

You plant 15 tulip bulbs and 10 of them grow into flowers that bloom. If you plant 21 more tulip bulbs, predict how many of them would bloom.

• 14

• 15

• 16

• 17

Tags

CCSS.2.OA.A.1

Park rangers in Yosemite estimated the number of raccoons in one hiking area. The rangers tagged 15 raccoons in the hiking area. The following week they captured 40 raccoons. If the park rangers estimated there were 75 raccoons in the area, how many of the captured raccoons were tagged?

• 8

• 10

• 12

• 15

Tags

CCSS.7.SP.A.2

Edgar surveyed 20 students. He asked for their favorite type of music. Their responses are below. Find the experimental probability a student will pick each of the four types of music. Write as a simplified fraction.

• 1/4

• 1/5

• 1/2

• 1/3

Tags

CCSS.7.SP.C.6