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compound probability

Authored by Willard Foley

Mathematics

7th Grade

CCSS covered

Used 1+ times

compound probability
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8 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

A bag contains 5 blue marbles, 4 red marbles, and 3 orange marbles. Mrs. Cox picks one without looking, replaces it and picks another one. What is the probability that she picks two that are not orange? 

9/16
3/4
9/144
5/16

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You have a bag of 17 marbles.  Four are blue, 6 are green, 2 are red, and the others are yellow.  What is the probability of drawing a green marble, putting it aside, and then drawing another green marble?

15/136
30/289
Other

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the game that Tony is playing, there is a 1/8 chance the spinner will land on red and a 3/8 chance that the spinner will land on yellow.   What is the probability that Tony will NOT spin red, then will spin red?

7/64
7/16
Other

Tags

CCSS.HSS.CP.B.7

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A number cube is rolled twice. What is the probability of getting a 6 on the first roll, then a number less than 5 on the second roll? 

2/3
5/36
1/9
1/36

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Lucy has the spinner pictured and spins it twice in a row. What is the probability that she lands on blue first and then on yellow or green?

1 / 16
1 ⁄ 6
1 ⁄ 8
3 ⁄ 4

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

You roll a six sided die. What is the probability of rolling an even number three times in a row? 

3/100
1/2
1/6
1/8

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A chorus has 50 girls and 35 boys. If two are chosen at random to sing a duet, what is the probability that both will be boys?

1/6

7/17

3/8

13/25

Tags

CCSS.HSS.CP.B.9

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