7th Grade Quiz: Unit 10

1.  What is the sample space for getting 3 "heads" when flipping a coin?

A: HHH, TTT
B: HHH, HHT, HTH, THH, HTT, TTH, THT, TTT
C: 1/8
D: 1/2

2.  If 1 number cube is rolled 18 times, and the desired outcome is 2, find P(2) and then multiply the probability by the events in the experiment.

F: P(2) is 1/9, 2 times
G: P(2) is 1/6, 3 times
H: P(2) is 1/4, 4 times
J: P(2) is 1/3, 6 times

3. Your mom wants to invite some friends over for a picnic.  She has made sandwiches: half are ham, and half are roast beef.  She also bought an equal amount of cheetos and funyuns.

She had your younger sibling help her put them in boxes, who put them in randomly.  What is the probability of a box containing a ham sandwich and cheetos?

A P(ham, cheetos) 1/2
B P(ham, cheetos)  1/3
C P(ham, cheetos) 1/4
D P(ham, cheetos) 2/3

4. Jorge was playing basketball and attempted 50 shots but only made 35 of them.  5 shots were 3 pointers.  What is the percent of shots that were made that were 3 pointers?

A 10%
B 14%
C 86%
D 90%

5. Gary went to the store to purchase a bag of apples.  Out of 12 apples, 8 were green and the others were red.  What is the number of red apples as a percent?

A 16%
B 25%
C 33%
D 66%

6. You forgot your diary lock combination.  It is a 3 digit non-repeating number.

You think a good place to start would be picking 3 numbers whose sum is 9.  You think you remember that they could be multiplied together to get 24. Create a sample space that includes these numbers.