Name: 
 

Experimental and Theoretical Probability Quiz


Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
You mix the letters S, E, M, I, T, R, O, P, I, C, A, and L thoroughly. Without looking, you draw one letter. Find the probability that you select a consonant. Write your answer as a fraction in simplest form.
a.
mc001-1.jpg
b.
mc001-2.jpg
c.
mc001-3.jpg
d.
mc001-4.jpg
 

 2. 

What is the probability that 1 shopper, selected at random, preferred neither Drink D nor Drink E?
Drink Survey
Drink
Number of Shoppers Who Preferred It
A
5
B
14
C
6
D
8
E
17

a.
mc002-1.jpg
b.
mc002-2.jpg
c.
mc002-3.jpg
d.
mc002-4.jpg
 

 3. 
What is the experimental probability of tossing heads.
Coin Toss Results
H = Heads  T = Tails
H  T  T  H  H  H  H  H  H  T  T  T  H  T  H
a.
mc003-1.jpg
b.
mc003-2.jpg
c.
mc003-3.jpg
d.
mc003-4.jpg
 

 4. 
From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles.
What is the experimental probability of randomly selecting a marble that is NOT yellow?  Write your answer in simplest form.
a.
mc004-1.jpg
b.
mc004-2.jpg
c.
mc004-3.jpg
d.
mc004-4.jpg
 

 5. 
A Lights-A-Lot quality inspector examines a sample of 25 strings of lights and finds that 5 are defective.
a. What is the experimental probability that a string of lights is defective?
b. What is the best prediction of the number of defective strings of lights in a delivery of 450 strings of lights?
a.
mc005-1.jpg; 25 lights
c.
mc005-3.jpg; 90 lights
b.
mc005-2.jpg; 5 lights
d.
mc005-4.jpg; 90.00 lights
 



 
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