1.
Ben, Jenny, Angela, and Craig all ran in the 1-mile cross-country race. What is the probability that Craig finished ahead of Ben?
A.
B.
C.
+
D.
Hint
2.
If the mean of three numbers is 4, what is their sum?
A.
12
B.
64
C.
7
D.
27
Hint
3.
Suppose you roll two 10-sided dice with faces numbered 1 to 10 and added the two outcomes. What is the probability that the sum is even?
A.
B.
C.
D.
Hint
4.
Suppose one player rolls a 6-sided die numbered 1 to 6, and a second player rolls an 8-sided die numbered 1 to 8. They find the difference between the numbers subtracting the lesser number from the greater number. Which difference gives the greatest probability?
A.
1
B.
2
C.
4
D.
3
Hint
5.
To win the
2-of-7
lottery game, players must match two numbers from 1 to 7 with those selected in a random drawing. What is the total number of possible pairs in the game?
A.
13
B.
9
C.
42
D.
21
Hint
6.
In the three-team playoff structure below, what is the probability that Team A will win assuming every team has an equal chance of winning?
A.
B.
C.
D.
Hint