Find Probability of Compound Events

Use the tree diagram to find the probability of tossing a head first and then a tail when a coin is tossed twice.

• 1

• 1_/2

• 1/₄

• 1/8

Given the person is a child, what is the probability they would pick neither?

• .26

• .195

• .286

• .214

A coin is tossed and then the spinner is spun. Determine the probability that you toss Heads and spin a Red.

• 1/6

• 1/10

• 0

• 1/12

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. P(orange,green)

• 1/15

• 2/15

• 3/31

• 1/5

A jar contains 4 white chips, 5 purple chips, and 1 black chip. Chips are selected randomly one at a time, and are not replaced. P(purple then black)

• 1/18

• 2/5

• 3/7

• 4/9

A basket contains four apples and six peaches. You randomly select one piece of fruit and eat it. Then you randomly select another piece of fruit. Both pieces of fruit are apples. P(apple, apple)

• 2/15

• 3/17

• 1/19

• 6/21

Mrs. Cole has to choose two pieces of fruit for her lunch.  If she randomly takes two pieces of fruit from a bowl of 8 oranges and 8 apples, what is the probability she will choose two apples?  (Mrs. Cole does not put back the first piece of fruit before she takes the second piece of fruit)
P(apple, apple)

• 1/4

• 7/30

• 1/32

• 1/64

Which compound event if composed of dependent events?

• Selecting a candy bar from a bag eating the candy bar and selecting again

• Selecting a candy bar from a bag, deciding you don't want it, replace the candy bar and select again.

A bag contains 2 blue marbles, 3 black marbles, and 5 red marbles. Mrs. Grow picks one marble, replaces it, then picks another. What is the probability of them both being blue?
P(blue and blue) 

• 1/25

• 1/5

• 1/20

• 2/5

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