Quantitative Probability

What is the probability of spinning a red if we spin 30 times?

• 2 times more likely

• 30 times more likely

• 6 times more likely

If you spin the spinner 90 times, how many times should the number 3 be selected?

• 9

• 15

• 16

• 30

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7

• 5/49

• 5/7

• 10/49

A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?

• 3

• 1/10

• 3/10

• 30%

Probability can be expressed as a number between_____ and _____.

• 0 and 100

• 0 and 10

• 0 and 1

• -1 and 1

Probability can be written as ...

• a fraction

• a decimal

• a percent

• all of the above

• The event will never ocurr

• The is a small chance that the event will occur

• The event is likely to occur

• The event will definitely occur

• The event is equally likely to occur

In a pet store, there are 6 puppies, 4 gerbils, and 7 parakeets. If a pet is chosen at random, what is the probability of choosing a puppy or a parakeet?

• 11/17

• 13/17

• 10/17

• None of the above

A number from 1 to 10 is chosen at random. What is the probability of choosing a 5 or an even number?

• 3/5

• 1/2

• 1/5

• None of the above

What is the sample space for a standard six-sided die?

• 1, 2, 3, 4, 5, 6

• 6

• 100%

• 2, 3, 4, 5, 6