Use the following information for questions:
A gambler wanted to test whether or not a die was fair. He rolled the die 180 times and got the results shown below. For example, the number "1" appeared on 40 rolls.
-If the die is fair, what is the expected number of times the number "1" should appear in 180 rolls of the die?
A) 40
B) 30
C) 20
D) None of the above

Question

Use the following information for questions:
 A gambler wanted to test whether or not a die was fair. He rolled the die 180 times and got the results shown below. For example, the number "1" appeared on 40 rolls. 
-If the die is fair, what is the expected number of times the number "1" should appear in 180 rolls of the die?
A) 40 
B) 30 
C) 20 
D) None of the above

Quizplus · Accepted Answer

The expected number of times a specific number appears when rolling a fair six-sided die is 1/6 of the total rolls. For 180 rolls, the expected number of times the number "1" should appear is 180 * (1/6) = 30.

Use the Following Information for Questions