Independent Probability

What is the probability of choosing a red marble, replacing it, and then choosing a blue marble? simplify your answer (solve using a dry erase or paper)

• 3 out of 50

• 6 out of 100

• 3 out of 100

• 2 out of 20

P(2 then 5) = 
*Hint: This is a compound event! To find the probability of a compound event, MULTIPLY the probability of each simple event.

• 1/6

• 1/12

• 1/36

Probability of:

Spinning a 3

Drawing an A

• 2/8

• 1/4

• 1/16

• 1/8

Probability of:
Spinning a 1
Drawing an A

• 1/4

• 3/8

• 4/12

• 3/32

A bag has 6 black checkers and 4 red checkers.

Find the probability of drawing a black checker from a bag , replacing it, and drawing another black checker.

• 2/3

• 9/25

• 2/5

• 3/5

What is the chances of rolling a six on the first roll of a 1-6 number cube and rolling an odd number on the second roll of the same cube.

• 1/12

• 1/6

• 1/8

• 1/2

A letter of the alphabet is chosen at random, then a coin is flipped. What is the probability of choosing a letter from the word MATH then getting tails? 

• 17/26

• 1/13

• 5/13

• 5/26

The two spinners above are spun. What is the probability of getting a perfect square (1,4,9,16), then the letter Z? 

• 3/20

• 9/20

• 1/8

• 11/40

Sam is fishing in a new catch and release pond that was just stocked with 32 bluegill, 49 catfish, 27 bass, and 12 carp. He catches a fish, releases it, then catches another. What is the probability that he caught a bluegill, then a carp? 

• 5/24

• 11/30

• 2/75

• 7/60

What is the probability of selecting an orange candy, putting in back, and selecting an orange candy again?

(not a trick.... what are the only color candies you see?!)

• 0%

• 25%

• 50%

• 100%