7R Unit 8 Probability Test Review

Each fraction below represents the probability that an event will occur. Which fraction below indicates the event most likely to occur?

Equally Likely Outcomes refers to:

• events that have all different probabilities

• events that have the same probability of occurring

• when two events occur at the same time

If a letter was chosen at random from the work MATHEMATICS, which of the following is closest to the probability that it would be a vowel?

• 40%

• 64%

• 36%

• 30%

Which of the following is an example of a compound event?

• Pick one red marble from a jar of marbles

• Toss a Coin and get heads

• Pick a queen of hearts from a standard deck of cards

• Roll a standard die then toss fair a coin

If two standard six-sided die were rolled with the numbers showing on each recorded, how many equally likely outcomes would be in the sample space?

• 6

• 12

• 36

• 24

If the spinner is spun twice, what is the probability it would land on the numbers 1 and 5?

When a standard die is rolled, which set below contains equally likely events?

• {Rolling an even, rolling an odd}

• {rolling a 2, rolling a 5}

• {rolling a number less than 2, rolling a number greater than 2}

A coin is tossed three times in a row. How many equally likely outcomes are possible?

• 6

• 8

• 2

• 4

If you roll a standard die 60 times, how many times would you expect to see a number greater than 4 appear?

• 2

• 30

• 15

• 20

The following numbers represent probabilities. Which one indicates the event that is least likely to happen?

• 0.53

• 36%

• 3 out of 5