Probability 1

Three out of five students in Mr. Dulle's class play chess. ______ % of students in his class play chess.

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7

• 5/49

• 5/7

• 10/49

Tags

CCSS.7.SP.C.7B

Miss Ward spins a wheel to determine the number of homework problems to assign. There are 20 sections labeled 1–20. What is the probability that there will be fewer than 8 problems assigned for homework?

• 8/20

• 3/5

• 4/9

• 7/20

Tags

CCSS.7.SP.C.7A

Jose randomly selected a block like the ones shown from a bag.  What is the probability that he will choose a cube with a number less than 5?

• ⅔

• ⅙

• ⅓

• ⅚

Tags

CCSS.7.SP.C.7B

Mr. Lau ordered a bunch of balloons for his daughter’s party. When he went to pick up the balloon order, one of the balloons came loose and floated away. If he started with 8 red balloons, 6 blue balloons, 4 green balloons, and 10 purple balloons, what is the probability that the balloon that floated away was red?

• 1/8

• 2/7

• 2/5

• 1/28

Tags

CCSS.7.SP.C.7B

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10
• 3/9
• 1/9
• 1/3

Tags

CCSS.7.SP.C.7B

What is the probability of spinning green?

• 0
• 1/4
• 1/2
• 3/4

Tags

CCSS.7.SP.C.7B

Mrs. Moreno has a box containing 6 lipsticks, 4 eye shadows, 6 eye liners, and 5 mascaras. If she randomly chooses one item from the box, what is the probability that she will grab a lipstick?

• 3/7
• 15/21
• 5/7
• 6/21

Tags

CCSS.7.SP.C.7B

A student will be chosen from a certain group. There are 9 girls and 8 boys in that group. What is the probability that the chosen student is boy?

• 9/17

• 8/17

• 8/9

• 17/72

Tags

CCSS.7.SP.C.7B

Grade 10 class teacher picks a random student in class. If there are 15 males and 22 females in the class, what is the probability that a female student will be picked?

• 15/37

• 15/22

• 22/37

• 10/37

Tags

CCSS.7.SP.C.7B