Intro Probability Practice

A bag contains 5 quarters, 2 dimes, and 4 pennies. What is the probability of picking a quarter?

• 5/6

• 3/4

• 5/11

• 4/11

green

• 27.5%

• 15.6%

• 25%

• 33.3%

P(red or yellow)

• 41.7%

• 25%

• 38.5%

• 16.7%

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marble you pick will be red or blue?

• 2/3

• 5/6

• 3/4

• 1/6

Gabriel has these cans of soup in his kitchen cabinet: 2 cans of tomato soup, 3 cans of chicken noodle soup, 2 cans of italian wedding soup, 2 cans of potato soup, & 1 can of split pea soup. If Gabriel randomly chooses 1 can of soup, what is the probability he selects chicken noodle soup?

• 10%

• 25%

• 30%

• 33%

P(not A) = 
*Remember to simplify.*

• 6/8

• 3/4

• 2/8

• 1/4

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

• 1/8

• 5/8

• 7/8

• 3/7

What is the probability of spinning green?

• 0

• 1/4

• 1/2

• 3/4

What is the probability of spinning red?

• 0

• 5/12

• 1/2

• 3/4

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