Practice Test B: Probability
Name:
Date:
Part A Multiple Choice
1. There are 2 red, 3 blue, and 4 yellow gum balls in a machine. What is the probability
of picking a blue or red gum ball?
a)
€
1
3
8
9
b)
c)
2
3
d)
5
9
2. How many ways can Mr Singfield choose 3 students from 30 to go to the office.
€
€
€
a) 90
b) 27 000
c) 4060
d) 6090
3. What is the probability of randomly picking a point on the segment AE below and
having it lie on segment BD?
3cm
B
A
a)
€
4
5
3cm
b)
8
15
5cm
4cm
C
D
c)
1
2
E
d)
7
15
4. How many outfits can be made with 3 different pants, 4 different tops and 3 different
€
€
€
belts?
a) 27
b) 10
c) 36
d) 15
Part B Short Answer
1. What is the probability of drawing four aces in a row without replacement?
2. What is the probability of randomly choosing a point inside the prism that is not
within the cone?
3. How many possible licence plate combinations are there in France given they start
with two letters followed by three numbers and then two letters?
4. How many ways can the gold, silver and bronze medal be awarded from a final of 16
runners
Part C Long Answer
1. The dartboard shown below consists of a square panel inscribed with a circle, square,
and
triangle. Points are awarded to each person based on whether they land in area A, B, C
or D.
Assuming a dart is randomly thrown and lands on the dartboard:
a) What is the probability that a dart will land in area C?
b) What is the probability that a dart will land in area A?
c) What is the probability that a dart will land in area B or D?
2. In a cooler there are 3 Ginger Ales, 2 Dr. Peppers and 4 Cream Soda’s. You pick one
randomly and drink it and then choose another for your friend to drink.
a) Use a probability tree to show your possible selections.
b) What is the probability of selecting a Dr. Pepper followed by a Cream Soda?’
c) What is the probability of selecting two drinks of the same kind?