Free Printable Unit 7 Investigating Data

1.

Number of steps taken per day and number of kilometers walked per day. $r=0.92$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

2.

Temperature of a rubber band and distance the rubber band can stretch. $r=0.84$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

3.

Car weight and distance traveled using a full tank of gas. $r=-0.69$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

4.

Average fat intake per citizen of a country and average cancer rate of a country. $r=0.73$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

5.

Score on science exam and number of words written on the essay question. $r=0.28$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

6.

Average time spent listening to music per day and average time spent watching TV per day. $r=-0.17$

a)

strong positive

b)

strong negative

c)

weak positive

d)

weak negative

7.

Estimate the correlation coefficient for this scatterplot.

a)

A) r = 1.2

b)

B) r = 0.89

c)

C) r = 0

d)

D) r = -0.89

8.

Estimate the correlation coefficient for this scatterplot.

a)

A) r = -0.77

b)

B) r = 1

c)

C) r = 0.9

d)

D) r = -1

9.

As x increases, y decreases.

a)

A) no correlation

b)

B) negative correlation

c)

C) correlation coefficient

d)

D) positive correlation

10.

As x increases, y increases

a)

A) correlation coefficient

b)

B) causation

c)

C) positive correlation

d)

D) negative correlation

11.

What kind of correlation is this?

a)

Weak positive

b)

Strong positive

c)

Weak negative

d)

Strong negative

12.

What are the characteristics of this Correlation Coefficient?

a)

Positive

b)

Negative

c)

Strong

d)

Weak

13.

What kind of correlation is this?

a)

Weak positive

b)

Strong positive

c)

Weak negative

d)

Strong Negative

14.

What kind of correlation is this?

a)

Weak positive

b)

Strong positive

c)

Weak negative

d)

Strong negative

15.

What are the characteristics of this Correlation Coefficient?

a)

Weak

b)

Strong

c)

Positive

d)

Negative

16.

What kind of correlation does the graph show?

a)

Weak

b)

Strong

c)

Positive

d)

Negative

17.

What kind of correlation does the graph show?

a)

Positive correlation

b)

Negative correlation

c)

No correlation

18.

What kind of correlation does this data have?

a)

Positive correlation

b)

Negative correlation

c)

No correlation

19.

What kind of correlation does this data have?

a)

Positive correlation

b)

Negative correlation

c)

No correlation

20.

What kind of correlation is this?

a)

Weak

b)

Strong

21.

What kind of correlation is this?

a)

Weak

b)

Strong

22.

What is the trend for this scatter plot

a)

Negative

b)

Positive

c)

None

23.

What is the type of association?

a)

Negative

b)

No association

c)

Positive

24.

Make a prediction for a resting heart rate after 6 hours of exercise a week.

a)

6

b)

50

c)

55

d)

80

25.

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

26.

What type of association does this scatter plot represent?

a)

Positive linear association

b)

Negative association

c)

No association

d)

Nonlinear association

27.

About how many male math teachers were there in 2006?

a)

15

b)

30

c)

35

d)

45

28.

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?

a)

A. 50 min

b)

B. 80 min

c)

C. 45 min

d)

D. 60 min

29.

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books. Use the trend line to predict how many chapters would be in a book with 180 pages.

a)

12 chapters

b)

15 chapters

c)

18 chapters

d)

21 chapters

30.

Based on the graph, if Joe earned $400, how many hours did he work?

a)

25 hours

b)

35 hours

c)

45 hours

d)

15 hours

31.

In a scatterplot, an outlier...

a)

...is something we didn't learn 8th grade

b)

...is a puppet with a long nose named Pinocchio

c)

...is a point that is far outside the main cluster of points/ordered pairs

d)

...is a really naughty point who doesn't tell the truth when outside

32.

Is this line an accurate line estimate of best fit for the data?

a)

Yes

b)

No

33.

Determine the shape of the given data set.

a)

Symmetrical

b)

Skewed

c)

Bimodal

d)

Uniform

34.

Determine the shape of the given data set.

a)

Skewed to the left

b)

Symmetrical

c)

Uniform

d)

Bell-shaped

35.

Describe the distribution of data.

a)

Symmetrical

b)

Bimodal

c)

Skewed

d)

Uniform

36.

Describe the distribution of the data.

a)

Skewed to the right

b)

Symmetrical

c)

Skewed to the left

d)

Uniform

37.

Describe the shape of the data given.

a)

Symmetrical

b)

Skewed

c)

Bimodal

d)

Uniform

38.

$\left\{3,4,5,5,5,6,7\right\}$
What's the mode is this list of numbers?

a)

5

b)

10

c)

4

d)

1

39.

What's another word for mean?

a)

Average

b)

Mode

c)

Ms. Castillo

d)

Range

40.

Find the median:
$\left\{29,41,48,48,52,68,76,77,84\right\}$

a)

52

b)

29

c)

88

d)

77

41.

At Dominique's Donuts the number of donut holes in a bag can vary. Help Dominique find the mode.
$\left\{12,10,10,10,13,12,11,13,10\right\}$

a)

13

b)

12

c)

11

d)

10

42.

Ervin bowled 7 games last weekend. His scores are: $\left\{155,165,138,172,127,193,142\right\}$ What is the range of Ervin's scores?

a)

193

b)

127

c)

60

d)

66

43.

Find the mean of these numbers:
$\left\{5,11,2,12,4,2\right\}$

a)

4.1

b)

6

c)

4.5

d)

4

44.

Find the median, the mode and the range:
$\left\{3,5,7,9,11,8,3\right\}$

a)

Median: 7, Mode: 3, Range: 7

b)

Median: 6, Mode: 3, Range: 7

c)

Median: 7, Mode: 3, Range: 8

45.

The number of miles that Kiki cycled each week for a 7-week period is shown:
$\left\{36,42,28,52,48,36,31\right\}$
What is the median number of miles Kiki cycled?

a)

24

b)

36

c)

39

d)

52

46.

Identify the outlier for the given data?
$\left\{23,34,27,7,30,26,28,31,34\right\}$

a)

7

b)

23

c)

31

d)

34

47.

The mode score on the 9th grade algebra test was 94! Which of these interpretations must be correct?

a)

99 was the highest score on the test.

b)

More students received a 94 than any other score

c)

No student scored below a 50

d)

A score of 91 was slightly below average.

48.

What is the range?

a)

The sum of the largest and smallest number

b)

The number in the middle

c)

The difference between the largest and smallest number

d)

The number that appears most often

49.

What is the mode?

a)

The average

b)

The number that appears most often.

c)

The largest number - the smallest number

d)

The number in the middle.

50.

A data set can have more than one mode

a)

True

b)

False

51.

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/elements

52.

Find the median:
$\left\{3,5,7,4,3,1\right\}$

a)

3 and 4

b)

There isn't one

c)

3.5

d)

3

53.

What is the standard deviation for the data given:

$\left\{5,10,7,12,0,20,15,22,8,2\right\}$

a)

6.89

b)

10.1

c)

7.26

d)

9

54.

What is the standard deviation for the data given:
$\left\{12,13,29,18,61,35,21\right\}$

a)

293.67

b)

15.87

c)

17.14

d)

41.98

55.

What value is the Q1?

a)

66

b)

58

c)

60

d)

64

56.

What percent of students have a height between 58 inches and 60 inches?

a)

25%

b)

50%

c)

75%

d)

100%

57.

What percentage of the data is between 90 and 140?

a)

25 %

b)

50%

c)

75%

d)

100%

58.

What is the maximum value?

a)

58

b)

66

c)

64

d)

60

59.

What is the median of the data?

a)

200

b)

100

c)

90

d)

140

60.

What data value is the Q3?

a)

64

b)

62

c)

66

d)

58

Unit 7 Investigating Data

Total questions: 60

Worksheet time: 1hrs 8mins

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