Probability #2

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?

• 5/6

• 1/2

• 1/3

• 1/6

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/9

• 1/9

• 1/3

Experimental Probability is:

• What Will happen 

• What actually happens

• What should happen

• What I think Happens

Theoretical Probability is?

• What Should happen

• What does happen

• What Will Happen

• What I want to Happen

P(not A) = Remember to simplify.

• 6/8

• 3/4

• 2/8

• 1/4

Find the experimental probability:

Roll dice: 1, 3, 3, 4, 4

P(1) =

• 3/5

• 1/6

• 2/5

• 1/5

A letter from the word MATH is chosen at random, then a coin is flipped. What is the probability of choosing the letter 'm' then getting tails?

• 17/26

• 1/8

• 5/13

• 1/6

Which shows the sample space for flipping two coins?

• H, T

• HH, HT, TH, TT

• HH, TT

• Dime, Nickel

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.  P(green, black)

• 3/20

• 1/4

• 3/31

• 2/27

You roll a pair of number cubes (dice). Which equation represents how to find the probability of rolling a 2 and an odd number?P(2, then odd)

• ⅙ x ½ = 1/12

• ⅙ + ½ = 2/8

•  ½ x ½ = 1/4

• ⅓ + ½ = 5/6