Probability Review M4

Mia owns a small business selling bagels. She knows that in the last week 85 customers paid cash, 5 customers used a debit card, and 16 customers used a credit card.

Based on these results, express the probability that the next customer will pay with cash as a percent to the nearest whole number.

• The probability as a percent to the nearest whole number is 80%.

• The probability as a percent to the nearest whole number is 60%

• The probability as a percent to the nearest whole number is 20%

• The probability as a percent to the nearest whole number is 15%

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

• .7273
• .4
• .16
• .22

What is the probability that they speak French given they are a girl? 

• 2.14
• .24
• .4
• .8571

What is the probability that a student plays on a sports team given they don't play an instrument? 

• .7273
• .8
• .55
• .2222

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

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

5 green

6 yellow

8 blue

7 brown

• 8/26 or 4/13

• 7/26

• 8/25

• 1/3

What is the probability that a female is chose given they like a Toyota? 

• .525
• .4627
• .6774
• .3143

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown
What is the probability of selecting a yellow candy, not replacing it, then selecting a green candy?

• 1/5
• 3/19
• 3/95
• 12/380

What is the probability of getting any letter that is not A?

• 6/8

• 3/8

• 2/8

• 4/8

A student group sells 500 raffle tickets for $2 each. At the drawing the top prize will be a gift certificate for $100. Second prize will be a $50 gift card and there will be five 3rd prizes, each a $20 gift card. Do you expect to win or lose (on average)? How much?

• lose an average of $5.50

• lose an average of $1.50

• win an average of $2.00

• lose an average of $10.00