Basic Probability

A box contains 4 yellow counters, 7 white counters, and 2 green counters. If one counter is chosen without looking, what is the probability that it is yellow?

• 4 yellow counters
• 7 white counters
• 2 green counters

Choose the best answer.

• 7/13
• 4/13
• 9/13
• 1/3

A box contains 2 white stickers, 6 purple stickers, and 2 black stickers. If one sticker is chosen without looking, what is the probability that it is white?

• 2 white stickers
• 6 purple stickers
• 2 black stickers

Choose the best answer.

• 4/5
• 2/10
• 3/5
• 1/5
• 2/9

A box contains 7 white cards, 5 purple cards, and 5 blue cards. If one card is chosen without looking, what is the probability that it is blue?

• 7 white cards
• 5 purple cards
• 5 blue cards

Choose the best answer.

• 5/16
• 5/17
• 12/17
• 7/17

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 5 red tokens, 5 purple tokens, and 1 orange tokens. If one token is chosen without looking, what is the probability that it is orange?

• 5 red tokens
• 5 purple tokens
• 1 orange tokens

Choose the best answer.

• 1/11
• 5/11
• 1/10
• 10/11

A box contains 4 purple cards, 9 blue cards, and 4 white cards. If one card is chosen without looking, what is the probability that it is blue?

• 4 purple cards
• 9 blue cards
• 4 white cards

Choose the best answer.

• 8/17
• 9/16
• 9/17
• 4/17

A box contains 2 purple tiles, 4 white tiles, and 7 green tiles. If one tile is chosen without looking, what is the probability that it is white?

• 2 purple tiles
• 4 white tiles
• 7 green tiles

Choose the best answer.

• 9/13
• 2/13
• 4/13
• 1/3

A box contains 8 orange counters, 9 green counters, and 1 yellow counters. If one counter is chosen without looking, what is the probability that it is yellow?

• 8 orange counters
• 9 green counters
• 1 yellow counters

Choose the best answer.

• 4/9
• 1/17
• 17/18
• 1/2
• 1/18

A box contains 3 blue beads, 7 red beads, and 6 yellow beads. If one bead is chosen without looking, what is the probability that it is yellow?

• 3 blue beads
• 7 red beads
• 6 yellow beads

Choose the best answer.

• 3/16
• 5/8
• 7/16
• 3/8
• 2/5

A box contains 9 yellow counters, 4 blue counters, and 7 orange counters. If one counter is chosen without looking, what is the probability that it is yellow?

• 9 yellow counters
• 4 blue counters
• 7 orange counters

Choose the best answer.

• 1/5
• 9/20
• 11/20
• 9/19

A box contains 6 orange counters, 7 red counters, and 4 white counters. If one counter is chosen without looking, what is the probability that it is white?

• 6 orange counters
• 7 red counters
• 4 white counters

Choose the best answer.

• 13/17
• 6/17
• 1/4
• 7/17
• 4/17

A box contains 3 purple counters, 2 orange counters, and 1 white counters. If one counter is chosen without looking, what is the probability that it is purple?

• 3 purple counters
• 2 orange counters
• 1 white counters

Choose the best answer.

• 1/3
• 3/6
• 1/2
• 3/5