Bryant Review Probability

The probability of an event is  $\frac{5}{6}$  . Which word best describes this probability?

• certain

• impossible

• likely

• unlikely

A Jar contains marbles of different colors. The probability of drawing a green marble is  $\frac{8}{20}$  . What's the probability of drawing a marble that is not green?

•  $\frac{2}{5}\ :\ likely$  

•  $\frac{3}{5}\ :\ likely$  

•  $\frac{2}{5}\ :\ unlikely$  

•  $\frac{3}{5}\ :\ unlikely$  

A player's hand in a card game has 2, 3, 4, 5, 5, 6, 8, and 10.

What is the probability the person will play an even number card?

• $\frac{3}{8}$

• $\frac{5}{8}$

• $\frac{30}{43}$

• $\frac{2}{3}$

A fruit basket has oranges, apples and bananas. The probability of picking an orange is  $\frac{2}{5}$  and an apple  $\frac{3}{10}$  . What is the probability of picking a banana?

•  $\frac{7}{10}$  

•  $\frac{5}{15}$  

•  $\frac{2}{3}$  

•  $\frac{3}{10}$  

Sam has 4 pairs of shorts and 5 shirts. How many combinations of shorts and shirts are possible?

• 9

• 12

• 15

• 20

A bag of marbles has 5 blue, 3 white and 4 red. What is the probability of picking a red marble, putting it back and then picking a white marble?

• $\frac{4}{12}$

• $\frac{1}{12}$

• $\frac{1}{4}$

• $\frac{7}{12}$

A spinner is number 1-8 and a cube is numbered 1-6.

What is the probability of the spinner landing on 5 and the cube landing on 3?

• $\frac{1}{48}$

• $\frac{1}{8}$

• $\frac{1}{14}$

• $\frac{5}{16}$

A student rolls two dice. What is the probability of rolling a sum of 8?

• $\frac{5}{12}$

• $\frac{2}{9}$

• $\frac{5}{36}$

• $\frac{1}{6}$

A student picks marbles out of a bag. The student has picked 10 green, 7 yellow and 8 pink. If the students picks a marble 300 times and puts it back each time, how many of the marbles will be pink?

• 8

• 25

• 96

• 100

A cube is rolled 240 times. How many of the rolls will be a 4 or 6?

• 40

• 60

• 80

• 120