Probability and Replacement

What is the probability of drawing an even number, then drawing a 1? (no replacement--dependent event)

• 5/8

• 2/7

• 10/56 = 5/28

• 2/56 = 1/28

What is the probability of drawing a 6, then drawing an odd number? (no replacement--dependent event)

• 3/8

• 9/56

• 10/56 = 5/28

• 3/7

What is the probability of drawing an odd number, then drawing a 6? (no replacement--dependent event)

• 3/8

• 3/7

• 9/56

• 5/37

What is the probability of drawing a 9, then drawing another 9? (no replacement--dependent event)

• 1/8

• 4/8 = 1/2

• 0

• 2/9

What is the probability of drawing a 9, then drawing a number divisible by 1? (no replacement--dependent event)

• 8/56 = 1/7

• 1/8

• 8/7

• 2/9

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

• 2/9

• 1/3

• 1/2

• 1/4

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(white, then purple, then black)

• 1/36

• 2/39

• 5/41

• 6/43

A fair coin is tossed four times. What is the probability that the first two times it comes up heads and the last two times it comes up tails?

A fair coin is tossed five times and comes up heads three times and tails two times. What is the probability it will come up tails if tossed one more time?

An urn contains 2 orange marbles and 5 blue marbles. A marble is drawn at random and replaced. Then a second marble is drawn. What is the probability that the first marble is orange and the second marble is blue?