Probability With Replacement and Without

What is the probability of randomly choosing two blue marbles without replacement from this bag?

Mathematical Equivalence

ON

Two tiles are selected one at a time and are NOT REPLACED. What is the probability that both As are selected? FOR THE ANSWER, TYPE THE TWO FRACTIONS THAT YOU MULTIPLY TOGETHER. PUT THE MULTIPLICATION SIGN BETWEEN THEM. THEN PUT THE =. THEN THE ANSWER. ONLY REDUCE THE FINAL ANSWER (IF NECESSARY).

Mathematical Equivalence

OFF

Two tiles are selected one at a time and are NOT REPLACED. What is the probability two Es are selected? FOR THE ANSWER, TYPE THE TWO FRACTIONS THAT YOU MULTIPLY TOGETHER. PUT THE MULTIPLICATION SIGN BETWEEN THEM. THEN PUT THE =. THEN THE ANSWER. ONLY REDUCE THE FINAL ANSWER (IF NECESSARY).

Mathematical Equivalence

OFF

What is the probability of randomly choosing two Jacks from a deck of cards without replacement? There are 52 cards in a deck.

Mathematical Equivalence

ON

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. Find the probability that the first marble is purple and the second marble is purple.

• 2/9

• 1/3

• 1/2

• 1/4

If you pick a red marble and keep it, how does that change the probability of getting a green marble when you pick a second time?

• No change

• More likely

• Less likely

• Impossible

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red and then a blue without replacement?

• 1/12

• 5/9

• 2/27

• 5/18

• 5/81

There are 10 counters in a bag, 3 red and 7 blue. I take one counter, then another without replacement. Find the probability of the value marked w

• ⁷/₁₀

• ³/₁₀

• ⁶/₉

• ²/₉

An urn contains 4 purple marbles and 3 pink marbles. Two marbles are drawn at random. What is the probability that both marbles are purple if drawn without replacement?

An urn contains 5 orange marbles and 6 blue marbles. Two marbles are drawn at random. What is the probability that the first marble is orange and the second marble is blue if the marbles are drawn without replacement?