ACT Practice 3(Stats)

So far, a student has earned the following scores on four 50-point quizzes during this marking period: 40, 37, 44, and 42. What score must the student earn on the fifth quiz to earn an average quiz score of 42 for the 5 quizzes?

• 42

• 45

• 47

• 49

• The students cannot earn an average of 42.

Tags

CCSS.6.SP.B.5C

The following chart shows the results when 31 high school juniors were asked to write the name of their favorite movie on a slip of paper and place it in a box. If a slip of paper is chosen at random from the box, which of the following is closest to the percent chance that the slip chosen will name Wedding Crashers?

• 4%

• 13%

• 31%

• 35%

• 69%

Tags

CCSS.7.SP.A.2

Arthur buys an ice cream sundae that contains one scoop of ice cream, one sauce, and either a cherry or pineapple wedge on top. He can choose chocolate, vanilla, strawberry, or banana ice cream; he can choose chocolate, caramel, or berry sauce; and he can choose either the cherry or the pineapple wedge for the top. How many different arrangements of these ingredients for Arthur's ice cream sundae are possible?

• 9

• 14

• 24

• 44

• 64

Of the 18 socks in a drawer, 10 are solid blue, 4 are solid pink, and 4 are pink and blue. If Mao randomly chooses a sock from the drawer, what is the probability that it will NOT be solid pink?

• 1/6

• 2/9

• 4/9

• 5/9

• 7/9

Javier earned the following 7 test scores. What is the median? 85, 92, 82, 94, 90, 80, 79

• 80

• 82

• 85

• 86

• 90

Tags

CCSS.6.SP.B.5C

Ms. Hernandez began her math class by saying:

I'm thinking of 5 numbers such that their mean is equal to their median. If 4 of the numbers are 14, 8, 16, and 14, what is the 5th number?What is the 5th number Ms. Hernandez is thinking of?

• 14

• 15

• 16

• 18

• 12

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

• 210

• 231

• 240

• 245

• 200

Tags

CCSS.6.RP.A.3B

In a certain school district, exactly 30% of the students come from families that have only one child.  If there are 7,340 students in the district, how many do not come from families with only one child?

• 514
• 2,202
• 5,138
• 7,120

Tags

CCSS.6.RP.A.3C

When x = 3 and y = 5, by how much does the value of 3x² – 2y exceed the value of 2x² – 3y ?

• 4

• 14

• 16

• 20

• -3

Tags

CCSS.6.EE.A.2C

A lunch menu has 3 types of sandwiches, 4 types of chips, and 5 types of drinks. How many ways can a person order a sandwich, chips and a drink?

• 12

• 25

• 60

• 120

• 35