Probability Review 3

8!

• 120

• 720

• 5040

• 40320

There are 12 kinds of Girl Scout cookies for sale. How many ways can Rachel choose three different kinds to buy?

• 220

• 36

• 1320

• 100

The spinner is divided into eight equal parts. Find the theoretical probability of landing on the given section of the spinner. P(white or red)=

• 1/4

• 5/64

• 7/8

• 3/4

A die is rolled once. What is the probability of rolling a number less than 5? Your answer should be a fraction in simplest form.

• 2/3

• 1/4

• 2/5

• 5/6

A bag contains 5 red, 8 green and 7 white marbles. One marble is drawn at random from the bag.

What is the probability of getting a white marble or green marble?

A die is thrown once. What is the probability of getting a number greater than 4.

A die is rolled once.  What is the probability of rolling a 5 or a 6? Your answer should be a fraction in simplest form.

• 5/6
• 2/6
• 1/3
• 1/5

A coin is flipped 4 times. What is the probability of landing on heads each time?

What is the probability of spinning a green the first spin and a blue the second spin?

• 1/25

• 1/5

• 4/50

• none of these

Des buys a pack of Starbursts that has 3 orange, 6 pink, 1 yellow, and 5 red Starbursts.  She puts the candy in the bowl.  If she reaches in and grabs two Starbursts without putting one back, what is the probability that she will pick a pink and then a yellow?

• 1/35
• 7/210
• 6/225
• 2/75