Unit 2 Test Review

Is the event INDEPENDENT or DEPENDENT?
You have a jar with 24 pieces of chocolate candy and 14 pieces of orange candy.  We take one piece of candy at random from the jar, put it back, and then take a second piece of candy at random from the jar.

• Independent
• Dependent

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

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

Find the price of a book for $49.95 with 3% tax

• $51.45

• $51.44

• $48.45

• $48.46

The number of students in the school went from 1028 down to 755.  What is the percent decrease?

• 26%
• 27%
• 36%
• 136%

Is the event INDEPENDENT or DEPENDENT?

Amy plays card games. She picks a card at random. Then without putting the first card back, she picks a second card at random.

• Independent

• Dependent

You are planning a vacation to Hawaii that will cost $5875, but if you schedule it today you can save 20%.  How much will you save by scheduling it today?

• $7050.00
• $4700.00
• $1175.00
• $117.50

Jerry borrowed $4,000 for 5 years at 6% simple interest rate. How much interest would he owe at the end of that time?

• $800

• $1,000

• $1,200

• $1,500

Determine whether the scenario involves independent or dependent events. Then find the probability.

• Independent; 0.25

• Dependent; 0.059

• Dependent; 0.267

• Independent; 0.028

A basket contains 4 green marbles and 8 blue marbles. A marble is drawn without

replacement. Then another marble is drawn. What is the probability that both marbles will

be green?

• 0.11

• 0.61

• 0.09

• 0.47