1. For
what value of x will x and 12 have the same mean (average) as
4 and 30?
[1] 4
[2] 48
[3] 22
[4] 12

2. Find
the median: 5, 15, 10, 15, 5, 10, 10, 20, 25, 15.

[1] 10
[2] 12.5
[3] 15
[4] no median

3.
Andy has grades of 84, 65, and 76 on
three math tests. What grade must he obtain on the next test to have
an average of exactly 80 for the four tests? _{
}

[1] 80
[2] 93
[3] 95
[4] 98

4.
Another term for line of best fit is

[1] scatter plot
[2] trend line
[3] tangent line
[4] slope

5.
Which situation describes a situation that is not a causal
relationship?

[1]
The rooster crows and the sun rises.
[2] The more miles driven the more gasoline needed.
[3]
The more powerful the microwave the faster the food cooks.
[4]
The faster the pace of the runner the quicker the runner finishes.

7.
The heights of students in inches in
Block 3 math class are: 65, 63, 68, 59, 74, 59,
68, 61, 64, 60, 69, 72, 55, 64.
What percent (to the nearest percent ) of the students are shorter than 5 feet 7 inches?

[1] 28%
[2] 29%
[3] 50%
[4] 64%

8.
The weekly salaries of six
employees at McDonalds are $140, $220, $90, $180, $140, $200. Find the mean
salary for these six salaries .

[1]
$140
[2] $160
[3] $161.67
[4]
$180

9.
A storeowner kept a tally of the sizes
of suits purchased in her store. Which measure of central tendency should
the storeowner use to describe the average size suit sold?

[1] mean^{
}
[2] mode^{ }
[3] median^{ }
[4] range

10.
According to the
box-and-whisker plot shown below, what is the third quartile value?

[1] 70
[2] 80

[3]
90

[4] 100

11.
Data regarding the students in the senior class: 578 students,
236 honor students, 150 scholarship winners, 51% male.
This data can be described as being

[1] qualitative
[2]
quantitative
[3] both
[4]
neither

12.
A study is conducted to determine whether office workers have high blood
pressure. The participants in the study were friends of the researcher who
shared the same doctor. Is this study biased?

[1]
yes
[2] no

13.
The data set 5, 6, 7, 8, 9, 9, 9, 10, 12, 14, 17, 17, 18, 19, 19 represents
the number of hours spent on the Internet in a week by students in a
mathematics class.
Which box-and-whisker plot represents this data?

14.
When data is graphed and a
positive correlation is observed, the first set of data is always causing
the affect seen in the second set of data.
[1] True
[2] False

15.
A tally was made of the number of
times each color of crayon was used by a kindergarten class. Which measure
of central tendency should the teacher use to determine which color is the
favorite color of her class?

[1] mean
[2] mode
[3] median
[4] range

16. Given
the data below, what type of correlation exists between the number of hours
spent in the mall and the number of dollars spent.

Hours in Mall
10
8
9
3
1
2
5
6
7
8
2
3
Dollars spent
40
15
24
20
10
35
50
70
18
25
100
60

[1] positive correlation
[2] negative correlation
[3] no correlation apparent

17.
The number of iTunes downloaded by 25
students in one week ranges from 15 to 55. The box-and-whisker plot below
depicts this data.

What is the number of iTunes at the
50th percentile?

[1] 15
[2] 20
[3] 25
[4] 40

19.
The values of 11 houses on Washington Street are shown in the table.
Find the mean value of these houses in dollars.

[1] $175,000
[2] $200,000
[3] $225,000
[4] $240,000

20.
The science test grades are posted. The class did very well. All students
taking the test scored over 75. Unfortunately, 4 students were absent for
the test and the computer listed their scores as 0 until the test is taken.
Assuming that no score repeated more times than the 0's, what measure of
central tendency would most likely give the best representation of this
data?

[1] mean
[2] mode
[3] median
[4] range