Probability Quiz

On a 6-sided die, which is more likely?

• Rolling an odd number
• Rolling an even number
• They are both equally likely.

Shannon has a bag of jelly beans. She removed on jelly bean, recording the color, and then replaced it. She repeated the process several times and record her results in the table. What is the experimental probability of her selecting a red jelly bean?

• 11/33
• 1/3
• 1/4
• 18/26

The chart below represents the number of marbles in a jar.
P(green) = 

• 5/19
• 10/28
• 5/14

The chart below represents the number of marbles in a jar.
P(red or brown) = 

• 5/19
• 10/28
• 5/14

P(not A) = 
*Remember to simplify.*

• 6/8
• 3/4
• 2/8
• 1/4

P(C or E) = 
*Remember to simplify.*

• 2/8
• 1/4
• 4/8
• 1/2

Ten balls numbered one through ten are placed in an urn. One ball is selected at random. 
P(not a 6) = 

• 1/10
• 6/10
• 9/10
• 4/10

The cafeteria has 2 choices of salads, 3 choices of entrees, and 2 choices of beverages. How many meal combinations are available and why?

• 7 because 2 + 3 + 2
• 12 because 2(3)(2)

P(2 then 5) = 
*Hint: This is a compound event! To find the probability of a compound event, MULTIPLY the probability of each simple event.

• 1/6
• 1/12
• 1/36
• 2/12

Experimental Probability is:

• What will happen 
• What actually happens
• What should happen
• What I think Happens