Probability of Compound Events

Probability of Compound Events

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What is probability?

Probability is the measurement of chance of an event occurring. We can use words or fractions to express probability.

Impossible

This occurs when the outcome doesn’t exist. It would be impossible to spin a green on this spinner.

Multiple Choice

How likely is it that I will see a dinosaur tomorrow?

• Certain

• Likely

• Unlikely

• Impossible

• Equally Likely

Multiple Choice

What is the probability of spinning the fair 8-sided spinner and landing on the 7?

• impossible - 0 / 8

• 1 / 2

• 1 / 8

• 7 / 8

Multiple Choice

Determine the probability of the following even occuring: You flip a fair coin and the coin will land heads up.

• 0

• 1/4

• 1/2

• 1

Multiple Choice

Find the P(red) marble.

• 9/11
• 9/20
• 11/9
• 20/9

Multiple Choice

The daily special at the House of Pies offers one of three featured pies and your choice of coffee, tea, milk or juice. How many ways can you order the special?

• 12
• 8
• 15
• 6

Multiple Choice

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 blue, eating it then selecting yellow?

• 2/18
• 1/9
• 2/20
• 1/19

Multiple Choice

A coin and a number cube with the numbers 1 through 6 are tossed. What is the probability of the coin showing tails and the number cube showing the number 3? 

• 1/12
• 1/4
• 1/8
• 1/2

Multiple Choice

P(a red card and then an orange card)
DO NOT replace

• 3/58
• 14/30
• 2/5
• 7/60

Multiple Choice

P(1 and A)

• 1/16
• 1/10
• 4/16
• 1/4

Multiple Choice

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a fair coin. What is the probability you will draw a blue marble and flip a heads?

• 1/9

• 3/9

• 3/6

• 5/6