Basic Probability

A box contains 2 orange counters, 2 purple counters, and 6 green counters. If one counter is chosen without looking, what is the probability that it is orange?

• 2 orange counters
• 2 purple counters
• 6 green counters

Choose the best answer.

• 2/10
• 4/5
• 1/5
• 2/9

A box contains 4 red tokens, 2 purple tokens, and 6 orange tokens. If one token is chosen without looking, what is the probability that it is orange?

• 4 red tokens
• 2 purple tokens
• 6 orange tokens

Choose the best answer.

• 1/3
• 1/2
• 1/6
• 6/11
• 6/12

A box contains 7 white marbles, 5 green marbles, and 4 red marbles. If one marble is chosen without looking, what is the probability that it is red?

• 7 white marbles
• 5 green marbles
• 4 red marbles

Choose the best answer.

• 5/16
• 3/4
• 7/16
• 4/15
• 1/4

A box contains 4 yellow buttons, 8 orange buttons, and 1 blue buttons. If one button is chosen without looking, what is the probability that it is yellow?

• 4 yellow buttons
• 8 orange buttons
• 1 blue buttons

Choose the best answer.

• 8/13
• 4/13
• 9/13
• 1/3

A box contains 3 green cards, 8 orange cards, and 1 black cards. If one card is chosen without looking, what is the probability that it is orange?

• 3 green cards
• 8 orange cards
• 1 black cards

Choose the best answer.

• 2/3
• 8/11
• 1/4
• 8/12
• 1/3

A box contains 5 yellow cards, 8 blue cards, and 6 red cards. If one card is chosen without looking, what is the probability that it is blue?

• 5 yellow cards
• 8 blue cards
• 6 red cards

Choose the best answer.

• 5/19
• 4/9
• 11/19
• 8/19

A box contains 6 black tokens, 4 red tokens, and 5 orange tokens. If one token is chosen without looking, what is the probability that it is black?

• 6 black tokens
• 4 red tokens
• 5 orange tokens

Choose the best answer.

• 6/15
• 3/7
• 3/5
• 4/15
• 2/5

A box contains 5 blue tokens, 6 yellow tokens, and 1 white tokens. If one token is chosen without looking, what is the probability that it is white?

• 5 blue tokens
• 6 yellow tokens
• 1 white tokens

Choose the best answer.

• 11/12
• 1/2
• 1/11
• 1/12
• 5/12

A box contains 7 orange beads, 7 red beads, and 2 black beads. If one bead is chosen without looking, what is the probability that it is black?

• 7 orange beads
• 7 red beads
• 2 black beads

Choose the best answer.

• 1/8
• 7/8
• 7/16
• 2/16
• 2/15

A box contains 4 orange beads, 5 black beads, and 7 green beads. If one bead is chosen without looking, what is the probability that it is green?

• 4 orange beads
• 5 black beads
• 7 green beads

Choose the best answer.

• 7/16
• 5/16
• 7/15
• 9/16
• 1/4

A box contains 5 black tiles, 2 orange tiles, and 6 red tiles. If one tile is chosen without looking, what is the probability that it is orange?

• 5 black tiles
• 2 orange tiles
• 6 red tiles

Choose the best answer.

• 11/13
• 5/13
• 2/13
• 1/6

A box contains 8 yellow beads, 9 black beads, and 3 purple beads. If one bead is chosen without looking, what is the probability that it is black?

• 8 yellow beads
• 9 black beads
• 3 purple beads

Choose the best answer.

• 9/19
• 2/5
• 9/20
• 11/20

A box contains 4 orange tokens, 9 green tokens, and 2 blue tokens. If one token is chosen without looking, what is the probability that it is orange?

• 4 orange tokens
• 9 green tokens
• 2 blue tokens

Choose the best answer.

• 11/15
• 2/7
• 3/5
• 4/15

A box contains 9 blue tokens, 6 yellow tokens, and 1 orange tokens. If one token is chosen without looking, what is the probability that it is orange?

• 9 blue tokens
• 6 yellow tokens
• 1 orange tokens

Choose the best answer.

• 3/8
• 15/16
• 9/16
• 1/15
• 1/16

A box contains 9 white counters, 2 yellow counters, and 5 blue counters. If one counter is chosen without looking, what is the probability that it is blue?

• 9 white counters
• 2 yellow counters
• 5 blue counters

Choose the best answer.

• 9/16
• 1/8
• 1/3
• 5/16
• 11/16

A box contains 2 green tiles, 7 purple tiles, and 8 blue tiles. If one tile is chosen without looking, what is the probability that it is green?

• 2 green tiles
• 7 purple tiles
• 8 blue tiles

Choose the best answer.

• 7/17
• 1/8
• 15/17
• 2/17

A box contains 3 red tiles, 3 blue tiles, and 8 white tiles. If one tile is chosen without looking, what is the probability that it is red?

• 3 red tiles
• 3 blue tiles
• 8 white tiles

Choose the best answer.

• 3/13
• Cannot be determined
• 3/14
• 11/14

A box contains 8 white buttons, 5 purple buttons, and 4 orange buttons. If one button is chosen without looking, what is the probability that it is orange?

• 8 white buttons
• 5 purple buttons
• 4 orange buttons

Choose the best answer.

• 4/17
• 13/17
• 5/17
• 8/17
• 1/4