Independent events: Probability

Suppose a number cube is rolled twice. What is the probability that an odd number will show both times? Simplify your answer

• 1/3
• 1/2
• 1/6
• 1/4

What is the probability of tossing a coin four times and getting tails each time?

• 1/16
• 1/8
• 1/2
• 1/4

A coin is tossed and a number cube is rolled. Find the probability,  P(heads and 7).

• 1/14
• 1/2
• 0
• 1/7

A number cube is rolled and a coin is tossed. What is the probability of rolling a number greater than 4 and tossing tails? Simplify your answer

• 1/6
• 1/3
• 1/2
• 1/4

A marble bag contains 3 red marbles, 4 gray marbles, 6 white marbles, and 5 black marbles. What is the probability of randomly drawing a red marble and then a gray marble if the first marble is replaced? Simplify your answer

• 1/9
• 1/27
• 1/6
• 2/9

To find the probability of multiple INDEPENDENT events...

• Find the probability of event #1

• Find the probability of event #2

• Add the probability of both event #1 & event #2

• Multiply the probability of both event #1 & event #2

What is the probability of spinning a 3 and drawing an A.

P(3 and A)? Simplify your answer

• 2/8

• 1/4

• 1/16

• 1/8

A bag has 3 red marbles, 2 blue, 4 green and 1 yellow. What is the theoretical probability of pulling a red marble?

• 3/10

• 3/9

• 1/9

• 1/3

The outcome of one event does not affect the outcome of the other event.

• independent event

• dependent event

What is the probability of spinning the spinner twice and landing on 3 the first spin then landing on an even number the second spin?

P(3 and an even number) Simplify your answer

• 1/16

• 4/64

• 1/4

• 2/32