Module 13: Theoretical Proability

What is the probability of flipping a coin
3 times and getting 3 heads?

• 1/8
• 1/4
• 1/2
• 3/4

Two number cubes each have sides that are labeled 1 to 6. Isis rolls the 2 number cubes. What is the probability that the sum of the numbers on the number cubes will equal 4?

• 1/36
• 1/18
• 1/12
• 1/6

Dustin has a spinner that is divided into
5 equal-size sections colored red, blue, orange, white, and green. What is the probability that Dustin spins pink on the next spin?

• 0
• 0.25
• 0.5
• 0.75

Tags

CCSS.7.SP.C.5

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.6

A number cube has sides labeled 1 to 6. Hannah rolls the number cube 18 times. How many times can she expect to roll a number less than 3?

• 2
• 3
• 6
• 8

Flavia has a bag with 8 white balls, 9 red balls, 14 green balls, and 10 orange balls. If she chooses a ball from the bag without looking, which color ball will Flavia be least likely to choose?

• white
• red
• green
• orange

Tags

CCSS.7.SP.C.5

Without looking, Tammy takes a marble out of a bag that contains 10 red marbles, 15 green marbles, and 25 blue marbles. She records its color and returns the marble to the bag. If Tammy repeats this process 90 times, how many times can she expect to pull out a red marble?

• 5
• 10
• 15
• 18

Tags

CCSS.7.SP.C.6

Alexander spins a spinner with four equally-sized regions and flips a coin. How many outcomes are possible?

• 2
• 6
• 8
• 36

Scarlett selects a card at random from a deck that contains 18 red, 12 yellow, and 20 blue cards. What is the probability that she does not select a red card?

• 13/25
• 16/25
• 18/25
• 24/25

Bella rolls 2 number cubes 60 times.
How many times can she expect the sum of the numbers to be greater than 10?

• 3
• 5
• 10
• 12