Probability

A jar contains 32 red marbles and 28 blue marbles. What is the probability that a randomly selected marble is red?

Make sure to simplify!

• 1/32

• 32/60

• 8/15

• 7/15

What is the probability of drawing a heart or a club from the standard deck of cards?

SIMPLIFY!

• 26/52

• 13/26

• 1/2

What was the experimental probability of how many times an even number was actually rolled using the table above?

• 15/6

• 5/2

• 3/6

• 1/2

What was the experimental probability of rolling a number greater than 4?

• 16/36

• 4/9

• 5/18

• 10/36

A bag conatins 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 green crayons. A crayon is selected, replaced, then another is selected.

Find the Probability of P(purple then yellow)

• 14/32

• 21/256

• 6/32

• 84/1024

A bag contains 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 green crayons. A crayon is selected, replaced, then another is selected.

Find the probability of P(green then red).

• 4/32

• 8/32

• 32/1024

• 1/32

A bag conatins 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 green crayons. A crayon is selected, it is not replaced, then another is selected.

Find the Probability of P(yellow then red)

• 6/32

• 8/31

• 3/62

• 48/992

A bag conatins 8 red crayons, 14 purple crayons, 6 yellow crayons, and 4 green crayons. A crayon is selected, it is not replaced, then another is selected.

Find the Probability of P(purple then green)

• 14/32

• 7/124

• 56/992

• 4/31

Of the 30 students in Mrs.Smith's math class, 13 are athletes and 9 are in band. Three of the athletes are also in band. If one student is chosen at random,find the probability that this student is in band, if it is known that they are not an athlete.

• 19/30

• 1/5

• 6/19

• 6/30

The table shows the results of a poll of 50 randomly selected students who were asked whether they prefer to watch hockey or football. Find the probability of P(prefer football / girl).

• 3/11

• 6/22

• 12/25