Independent & Dependent Probability

Ricardo has the spinner pictured here and a bag of marbles filled with 2 red marbles, 3 green marbles, and 3 blue marbles. What is the probability that Ricardo spins red on the spinner and picks a red marble out of the bag?

• 1 ⁄ 16

• 1 ⁄ 2

• 1 ⁄ 4

• 1 ⁄ 8

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. Find the probability that you will draw two purple marbles.

• 2/9

• 1/3

• 1/2

• 1/4

A jar contains 14 white chips, 5 purple chips, and 21 black chip. Chips are selected randomly one at a time, and are then placed back in the jar. What is the probability you will draw a white chip and then a purple chip?

• 7/16

• 2/40

• 19/40

• 1/20

What is the probability of rolling a dice and landing on a 4, and then rolling the dice again and landing on any even number?

• 1 ⁄ 6

• 1 ⁄ 8

• 1 ⁄ 2

• 1 ⁄ 12

Yasmine places 4 blue beads and six red beads in bag. What is the probability she picks a blue bead, puts it back in the bag and selects another blue bead?

• 1/5

• 4/25

• 2/5

• 8/25

A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced?

• 1/5

• 1/100

• 1/25

• 2/10

Find the probability of spinning a B and a 2.

• 1/12

• 1/6

• 1/2

• 3/10