2.1 Basic Probability and Odds

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

Tags

CCSS.7.SP.C.5

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

• 1/2
• 1/3
• 1/4
• Never, Tails never fails.

Tags

CCSS.7.SP.C.5

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 3
• 1/10
• 3/10
• 30%

Tags

CCSS.7.SP.C.5

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The probability of it raining today is 30%.  What is the probability that it will NOT rain?

• 30%
• 70%
• 100%
• 0%

Tags

CCSS.7.SP.C.5

A die is rolled. What is the probability that the result is less than 3 ?

• 1/2
• 1/3
• 1/4
• 1/6

Tags

CCSS.7.SP.C.5

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7
• 5/49
• 5/7
• 10/49

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.7

The possible outcomes for the SUM of the dots when rolling a pair of fair dice are shown.

What is the probability of rolling a sum of 8?

• 1/3

• 5/36

• 1/6

• 2/9

Lucas has heard his neighbors dogs barking 3 of the past 6 nights.  Which of the following is the best prediction of the number of times the dogs will bark over the next 18 nights?

• 9
• 1/2
• 3
• 6

Tags

CCSS.6.RP.A.3B

The probability of getting bonus points is 5:8. Find the odds in favor of getting bonus points.

• 5/3

• 5/13

• 3/5

• 8/13

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

CCSS.7.SP.C.5