NJ Pass 9 – Intensification
5.
1.
6.
2.
3.
4.
7.
9.
8.
10.
11.
12.
13. Sectors A and B of this spinner have 90° central angles. Sector D has a 30° central angle. Which is the best
estimate of the probability that the spinner will land on sector C?
a.
b.
c.
d.
25%
33%
42%
50%
Use the information below to answer the following questions.
A major highway links Newark (A) in the north with Atlantic City (B) in the south and then on to
Cape May (C) at New Jersey’s southernmost tip. The Atlantic City Expressway connects Atlantic
City to Philadelphia (D) in the west. Philadelphia is connected to Newark by the New Jersey
Turnpike.
____ 14. Which network correctly models these highway connections?
a.
b.
c.
d.
15. If the spinner below is spun twice, what is the probability that the arrow will stop on a vowel both
times?
Short Answer
16. A construction company orders 7700 new light bulbs for a new office building. If the probability of a
light bulb being defective is 1.9%, predict how many of the light bulbs are likely to be defective.
Round your answer to the nearest whole number.
17. A cell phone company orders 500 new phones from a manufacturer. If the probability of a phone
being defective is 2.6%, predict how many of the phones are likely to be defective. Round your
answer to the nearest whole number.
18. Suppose you have just two pennies, two nickels, two dimes and three quarters in your pocket.
Assuming that each coin is equally likely to be selected, in how many ways can you choose each of
the following?
a. one coin
b. two coins
c. seven coins
d. eight coins
19. A basket contains 1 blueberry muffin, 1 apple muffin, 1 bran muffin, and 1 carrot muffin. You
randomly choose 3 muffins. What is the probability that you choose apple, bran, and carrot muffins?
20. A drawer contains 2 red socks, 7 white socks, and 9 blue socks. Without looking, you draw out a
sock and then draw out a second sock without returning the first sock. What is the probability that
the first sock and the second sock are both red?
21. A drawer contains 4 single red socks, 9 single white socks, and 2 single blue socks. Without looking,
you draw out a sock, you replace it and draw out a second sock. What is the probability that the first
sock and the second sock are both red?
22. Nine people are entered in a race. If there are no ties, in how many ways can the first two places
come out?
23. EXTENDED RESPONSE Write your answer on a separate piece of paper.
Lisa has 3 dimes, 4 pennies, and 5 quarters in her pocket.
a. If she draws out a coin at random, what is the probability that the coin is a dime or a penny?
b. Lisa draws out a total of two coins at random. The probability that they are both pennies is
.
Explain how you know whether she put the first coin back into her pocket before she drew out the
second coin.