Act Math Probability

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5

• 9/100

• 1/10

• 2/5

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

• 2.14

• 0.24

• 0.4

• 0.8571

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

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

Select the best answer.

• F

• G

• H

• J

• K

• 200
• 480
• 600
• 750

One of the volunteers whose Sam77 test result was positive will be chosen at random. To the nearest 0.001, what is the probability the chosen volunteer does NOT possess Yq77?

• 0.017

• 0.026

• 0.035

• 0.041

• 0.063

If the sum of the probabilities of all possible outcomes of an event is 1, what is the probability of an impossible event?

• 0

• 1

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. What is the probability that both pieces of fruit are apples.

• 2/15

• 3/17

• 1/19

• 6/21

There are seven boys and seven girls in a class. The teacher randomly selects one student to answer a question. Later, the teacher randomly selects a different student to answer another question. What is the probability that the first student is a boy and the second student is a girl?

• 7/26

• 1/2

• 2/17

• 8/29