Making predictions with probability

Making a prediction is a

• guess
• my favorite band
• using a magic 8 ball
• using previous information to determine what comes next

Tags

CCSS.RI.6.1

CCSS.RI.7.1

CCSS.RI.8.1

CCSS.RL.6.1

CCSS.RL.7.1

Jillian rolled a number cube 360 times. About how many times do you expect her to roll a 2?

• 20 
• 180
• 60 
• 120

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7

Drake made 14 out of 20 free throw shots.  About how many out of the next 30 free throw shots would you expect him to make?

• 20
• 21
• 22
• 25

Tags

CCSS.7.RP.A.3

A poll was taken of Hobby Middle School, 25 out of 30 students said they would prefer pizza on Friday’s. Out of 1200 students, what is a reasonable prediction of how many students would prefer pizza on Fridays?

• 100

• 1000

• 10

• 1

Tags

CCSS.7.RP.A.2C

As a part of a survey, 50 students were asked about their favorite lunch item. The results are shown below.

• Pizza 10
• Tacos 5
• Hot dogs 15
• Hamburgers 20
• 
  

The cafeteria manager knows that about 300 students buy lunch from the cafeteria each day. Based on the table, she predicts that 60 students will buy pizza each day. Which statement about her prediction is true.

• Her prediction is invalid because ⅕ of 50 is 10.

• Her prediction is invalid because ¼ of 300 is 75.

• Her predictions is invalid because 120% of 50 is 60.

• Her predictions is valid 20% of 300 is 60.

Tags

CCSS.6.RP.A.3C

A bag contains:

• 5 red marbles

• 6 blue marbles

• 3 green marbles

• 4 black marbles

• 2 yellow marbles

A marble will be drawn from the bag and replaced 200 times. What is a reasonable prediction for the number of times a yellow or green marble will be drawn?

• 20

• 30

• 50

• 40

Tags

CCSS.6.RP.A.3B

Isidro flips a fair coin 40 times. How many times can he expect heads to appear?

• 4
• 10
• 15
• 20

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

In this jar of 20 jellybeans, 8 are pink. How many would be pink in a jar of 100?

• 20

• 40

• 5

• 100

Tags

CCSS.6.RP.A.3B

I spin the spinner and landed on orange 2/6 times, how many times would I land on orange if I spun it 24 times?

• 8

• 4

• 24

• 6

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Marco spun this spinner 20 times. How many times would you predict he landed on red?

• 10

• 20

• 5

• 6.666

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

CCSS.7.SP.C.7