1 pt
DOK: 2

1.

A random sample of 7 students had the following scores on a quiz: 8 points; 9 points; 8 points; 6 points; 7 points; 6 points; 2 points. Which of the following is the best approximation of the mean absolute deviation of the sample of quiz scores?

A

1.90 points

B

2.13 points

C

1.63 points

D

2.30 points

1 pt
DOK: 2

2.

Examine the following two data sets:

Set #1: 49, 55, 68, 72, 98

Set #2: 20, 36, 47, 68, 75, 82, 89

Which of the following statements is true?

A

They have the same mode.

B

They have the same median.

C

They have the same mean.

D

none of the above

1 pt
DOK: 1

4.

Which of the following sets of numbers has a range of 51?

A

{29, 19, 72, 68, 39}

B

{81, 85, 37, 41, 60}

C

{17, 12, 9, 47, 82}

D

{62, 86, 44, 78, 95}

1 pt
DOK: 1

6.

What is the mean of 36, 54, 66, 45, 36, 36, and 63?

A

36

B

45

C

48

D

63

1 pt
DOK: 2

8.

The following are Raelee’s grades in math this semester: {93, 68, 83, 87, 79, 91}. If the teacher drops the lowest grade, which statement is true?

A

The median increases by 2.

B

The median increases by 5.

C

The mean increases by 2.

D

The mean increases by 5.