Understanding Probability

Experimental Probability is:

• What may happen

• What actually happens

• What should happen

• What I think happens

Theoretical Probability is?

• What should happen

• What does happen

• What may happen

• What I want to happen

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red? Make sure your answer is reduced.

• 3/10

• 3/9

• 1/9

• 1/3

Tags

CCSS.7.SP.C.7B

What is the probability of spinning green? Make sure your answer is reduced.

• 0

• 1/4

• 1/2

• 3/4

Tags

CCSS.7.SP.C.7B

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/11
• 5/6
• 1/3
• 5

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

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

What is the probability of randomly pulling out a green marble. Make sure your answer is reduced.

• 5/19

• 10/28

• 5/14

• 10/38

Tags

CCSS.7.SP.C.7B

What is the probability of spinning an even number?

• 16 2/3%

• 33 1/3%

• 50%

• 75%

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

You flip a nickel three times.
Find the probability that all flips will land on tails.

• 1/2
• 1/4
• 1/6
• 1/8

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

You spin this spinner 3 times.
Find the probability of these 3 events.
P(red, odd, 3)

• 1/216
• 1/72
• 1/36
• 1/12

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

CCSS.7.SP.C.8

A store sells shirts that are either small, medium, or large. The colors are either red, blue, green, or white. What is the probability someone will select a large green shirt?

• 1/3
• 1/7
• 1/9
• 1/12

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7