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Data Management Test Grade 8

Total questions: 22

Worksheet time: 1hrs 27mins

Name
Class
Date
1.

Madison bowled 7 games last weekend. Her scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Madison's scores?

a)

193

b)

127

c)

60

d)

66

2.

The scores awarded to 25 students for an assignment at Whaley's were as follows:

4 7 5 9 8 6 7 7 8 5 6 9 8 5 8 7 4 7 3 6 8 9 7 6 9

What is the mode?

a)

6

b)

7

c)

8

d)

9

3.
Find the mean of these numbers:
5,11,2,12,4,2
a)
4.1
b)
6
c)
4.5
d)
4
4.
To find the mean of a set of numbers, add up all the items and divide by...
a)
2
b)
The minimum
c)
The maximum
d)
The number of items
5.

The number of miles that Sahil cycled each week for a 7-week period is shown:

36, 42, 28, 52, 48, 36, 31

What is the median number of miles Sahil cycled?

a)

24

b)

36

c)

39

d)

52

6.
At which age do the least amount of teens have a cell phone?
a)
18
b)
14
c)
13
d)
15
7.

What is the difference between Ameya's 12th grade math score and his 7th grade math score?

a)

72

b)

91

c)

21

d)

19

8.
What is the general trend of this line graph?
a)
The more you mow, the less money you make.
b)
You make the same amount of money regardless of how long you mow.
c)
The more you mow, the more money you make.
d)
Mowing is dangerous.
9.
The graph below shows the number of sunny days and rainy days in a city during four months.

Based on the graph,how many more sunny days than rainy days did this city have during the months of April, May, and June?
a)
21
b)
56
c)
26
d)
20
10.

What type of correlation does this graph have?

a)

Negative

b)

no association

c)

positive

11.

What type of correlation does this graph have?

a)

positive

b)

negative

c)

none

d)

all of the above

12.

Which sentence describes the relationship shown on this scatter plot?

a)

As the temperature decreases, the visitors increase.

b)

As the temperature increases, the number of visitors increases.

c)

As the visitors increase, the temperature decreases.

d)

No correlation

13.

What type of correlation does this scatter plot show?

a)

positive

b)

negative

c)

no correlation

d)

nonlinear association

14.

Based on the information in the graph, which inference about the general population of students is valid?

a)

Girls like country music more than all other genres combined.

b)

More girls than boys like rock music.

c)

Boys like country music more than rock music.

d)

Boys like rock music more than girls like rap music.

15.

Which of these inferences BEST suits the graph of species 5?

a)

A population of bacteria goes through periods of activity and inactivity

b)

A population of mice increases and becomes stable

c)

A population of birds increases in the spring, but decrease 2 weeks later

d)

A population of wolves slowly increases and then rapidly increases

16.

This graph shows how a population of whales has changed over many years. During this time, the whales were affected by a deadly disease with a very high death rate. Eventually, however, the population developed immunity to the virus.


which of these inferences is best supported by the graph?

a)

The predator population increased in 1993

b)

The ecosystem can on contain less than 85 whales

c)

The ecosystem is healthiest with a population below 75

d)

The population recovered in 1985 and 2001 from high death rates/population drops

17.

You are collecting data on how many minutes it takes sponge eggs to hatch at different water temperatures. Which type of graph should you use?

a)

line

b)

bar

c)

pie

d)

scatter plot

18.

Which is the correct type of graph to use with this data table?

a)

Bar graph

b)

Line graph

c)

Scatter plot

d)

Pie Chart

19.

Which is the correct type of graph to use with this data table?

a)

Bar graph

b)

Line graph

c)

Scatter plot

d)

Pie Chart

20.

Which is the correct type of graph to use with this data table?

a)

Bar graph

b)

Line graph

c)

Scatter plot

d)

Pie Chart

21.

Which is the correct type of graph to use with this data table?

a)

Bar graph

b)

Line graph

c)

Scatter plot

d)

Pie Chart

22.

Which is the correct type of graph to use with this data table?

a)

Bar graph

b)

Line graph

c)

Scatter plot

d)

Pie Chart