Keech Probability Review 4-10

Multiple Choice

How many total people were surveyed?

• 224

• 448

• 131

• 146

Multiple Choice

• .2855
• .6246
• .0922
• .3230

Multiple Choice

What is the probability that a student does play a sport given they do not play an instrument? 

• .2
• .2222
• .10
• .5

Multiple Choice

P(Sandals|Pants):

• 4/20
• 6/15
• 1/2
• 2/7

Fill in the Blanks

State the sample space:

Spinner

Fill in the Blanks

State the sample space:

Months of the year

Fill in the Blanks

Find the theoretical probability (Write your answers in fraction form)

Choose a 7 from a deck of cards

Fill in the Blanks

Find the theoretical probability (Write your answers in fraction form)

Choose a vowel from the alphabet (exclude y)

Multiple Choice

What is the probability that the person picked will be a boy given they speak german? 

• .7273
• .4
• .16
• .22

Multiple Choice

What is the probability that a student plays an instrument 

• .55
• .5
• .45
• .4

Multiple Choice

Mrs. Trevino has 3 red pens, 5 pink pens, and 8 blue pens. What is the probability that she will choose a blue pen to grade papers?

• 1/2

• 8

• 3/16

• 16/8

Multiple Choice

A bag contains 15 yellow cubes, 6 blue cubes, and 4 red cubes. If you select a cube at random, what is the probability the cube will NOT be yellow?

• 25/15

• 2/5

• 15

• 5/3

Multiple Choice

What is the probability of rolling a 3 and spinning a red?

• 1/6

• 1/4

• 1/10

• 1/24

Multiple Choice

If you choose from the following M & M colors, what is the probability that you choose blue?

5 green

6 yellow

8 blue

7 brown

• 1/4

• 4/13

• 8/25

• 1/3

Multiple Choice

How many total people were surveyed?

• 224

• 448

• 131

• 146

Multiple Choice

Theoretical P(King)

• 2/8

• 1/8

• 3/8

• 1/4

Multiple Choice

Bert’s new high school plans to choose school colors by the end of the month. Bert surveyed 100 band students for their color preferences in the chart below.

Which statement best describes why Bert’s data is misleading?

• The population sample is not identified by age.

• 
  It does not give the percentage for each color combination.

• It does not identify the grade level of the students surveyed.

• The entire school population is not represented in the survey.

Multiple Choice

Terry has 3 pairs of pants: black, khaki, and brown, and 4 shirts: yellow, red, blue, and white. He does not care which colors he wears together. If Terry chooses one pair of pants and one shirt at random, what is the probability that his outfit will be the black pants with the yellow shirt?

• $$\frac{1}{7}$$

• $$\frac{1}{12}$$

• $$\frac{2}{12}$$

• $$\frac{1}{4}$$