Unit 5 - Probability - Quiz 1

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

• 3/20
• 1/4
• 3/31
• 2/27

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

• .525
• .4627
• .6774
• .3143

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

• 2.14
• .24
• .4
• .8571

What is the probability that a student plays an instrument?

• .55
• .5
• .45
• .4

There are six nickels and seven dimes in your pocket. You randomly pick a coin out of your pocket and then return it to your pocket. Then you randomly pick another coin.  What is the probability that the coin is a nickle both times?

• 36/169
• 6/13
• 5/16
• 3/19

A certain brand of TV has a 50% chance of being defective. Which model could be used to determine the probability that when two TVs are chosen, they will both be defective?

• spin a spinner with 4 equal sections
• roll a die twice
• flip a coin twice
• flip a coin, then roll a die

What statement does the shaded region represent

• A or B
• Not A
• A and B
• Not B

How many senior boys play football or wrestle?

• 9
• 21
• 30
• 39

What is P(Foreign language | Sport)?

• 14/27
• 7/12
• 23/47
• 37/47

A bag contains 5 red marbles and 4 pink marbles. A marble is randomly drawn and then replaced. What is the probability the first marble is pink and the second is red?

• 26.9%
• 24.7%
• 20.0%
• 5%