7th Grade Math Topic 7 Quiz

There are 12 girls & 8 boys in Ms. Vanderford's class. Ms. Vanderford wrote each student's name on a slip of paper & dropped it in a paper bag. If she picks a slip without looking, what is the probability that she will pick a boy's name8

• 40%

• 60%

• 67%

• 80%

Tucker rolls a number cube with faces numbered 1 to 6. What is the probability that he will roll a number that is greater than 3?

• 1/6

• 1/3

• 1/2

• 2/3

Kadie put 2 green marbles, 5 red marbles, 5 yellow marbles, & 8 blue marbles into a box. If Kadie randomly takes on marble from the box, what is the probability of her choosing a red marble?

• 1/4

• 5/18

• 13/20

• 5/20

If Lorna opens the book without looking, what is the probability she will open to Chapter 5?

• 1/20

• 1/6

• 1/5

• 1/4

Which probability value implies that the event will certainly occur?

• -1

• 0

• 0.5

• 1

The probability of an event is 0. Which word best describes this event?

• certain

• impossible

• likely

• unlikely

The probability of an event is 7/8. Which word best describes this probability?

• certain

• impossible

• likely

• unlikely

• 5/6

• 1/2

• 1/5

• 1/6

• 1/8

• 1/4

• 1/3

• 1/2

A box contains 5 red marbles, 8 white marbles, & 4 green marbles. One marble is taken out of the box at random. What is the probability & the likelihood that the marble taken out will NOT be green?

• 4/17, unlikely

• 4/17, likely

• 13/17, unlikely

• 13/17, likely