Probability Overview

Probability is ...

• The likelihood of an event occurring.

• a game that involves coins.

• a guarantee.

Tags

CCSS.7.SP.C.5

Experimental Probability is:

• What MIGHT happen

• What DOES happen

• What SHOULD happen

• What DOES NOT Happens

Theoretical Probability is?

• What SHOULD happen

• What DOES happen

• What MIGHT happen

• What DOES NOT happen

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 5/6

• 1/2

• 1/3

• 1/6

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

• 3/10

• 3/9

• 1/9

• 1/3

Tags

CCSS.7.SP.C.7B

P(not A) = 
*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

Tags

CCSS.7.SP.C.7B

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

Tags

CCSS.7.SP.C.7B

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. What is the probability of taking out a purple, NOT replacing it, and then taking out an orange?

• 1/9

• 2/15

• 3/31

• 1/5

Using the photo, if you select a marble without looking, how likely is it that you will pick a blue marble?

• certain

• probable

• unlikely

• impossible

Tags

CCSS.7.SP.C.5

You flip a coin 20 times and record the results. Is this experimental or theoretical probability?

• Experimental

• Theoretical