Quiz about Topic 1 Notebook Review

Question 1

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

Accepted Answer

66

Answer

193

Answer

127

Answer

60

Question 2

Find the mean of these numbers:
5,11,2,12,4,2

Accepted Answer

6

Answer

4.1

Answer

4.5

Answer

4

Question 3

The following table shows the annual salaries earned by employees of a small company. What is the mean?

Accepted Answer

54,950

Answer

75,650

Answer

42,750

Answer

51,000

Question 4

33, 25, 42, 25, 31, 37, 46, 29, 38

What is the Q3 of the data?

Accepted Answer

40

Answer

37

Answer

38

Answer

42

Question 5

Find the median.
12, 5, 9, 18, 22, 25, 5

Accepted Answer

12

Answer

9

Answer

8

Answer

18

Question 6

Find the median, first quartile, third quartile, and interquartile range of the data.

32, 53, 72, 66, 47, 54, 49, 67, 71

Accepted Answer

Median: 54

First Quartile: 48

Third Quartile: 69

IQR: 21

Answer

Median: 54

First Quartile: 49

Third Quartile: 67

IQR: 18

Answer

Median: 54

First Quartile: 48

Third Quartile: 69

IQR: 22

Answer

Median: 54

First Quartile: 49

Third Quartile: 69

IQR: 20

Question 7

Mr Holland gives his class a test. The results are:

34%, 44%, 75%, 21%, 98%, 86%, 71%, 76%, 63%, 55%

How many students scored above the mean percentage?

Accepted Answer

6

Answer

4

Answer

5

Answer

7

Question 8

What is the range of this data set?

Accepted Answer

20

Answer

5

Answer

30

Answer

26

Question 9

What height would you need to be above to be in the tallest 25% of students?

Accepted Answer

64

Answer

58

Answer

60

Answer

62

Question 10

Is a histogram the same as a bar graph?

Accepted Answer

No, because a histogram displays numerical data while a bar graph displays categorical data.

Answer

Yes, because they both use intervals.

Answer

Yes, because they both use bars to display data.

Answer

No, because a histogram displays categorical data while a bar graph displays numerical data.

Question 11

What is the median of the data?

Accepted Answer

14

Answer

10

Answer

12

Answer

13

Answer

18

Question 12

What is the range of the data?

Accepted Answer

70

Answer

80

Answer

10

Answer

40

Answer

30

Question 13

For the data set shown, what is the median?

{10, 12, 14, 14, 16, 18, 20, 20}

Accepted Answer

15

Answer

14

Answer

15.5

Answer

16

Question 14

What percent of the data falls between 8 and 10 absences?

Accepted Answer

25%

Answer

0%

Answer

50%

Answer

75%

Answer

100%

Question 15

How many runners had a time of 10.5 seconds?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 16

How many students are between 56 and 59 inches tall?

Accepted Answer

5

Answer

4

Answer

10

Answer

8

Question 17

Calculate the interquartile range (IQR) of the following data:

17, 18, 18, 19, 20, 21, 21, 23, 25

Accepted Answer

4

Answer

3

Answer

5

Answer

8

Question 18

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

Accepted Answer

The mean will decrease

Answer

The median will decrease

Answer

The mean will increase

Answer

The median will increase

Question 19

What are observations that are measured or counted called?

Accepted Answer

quantitative data

Answer

qualitative data

Question 20

Observations, like the color or texture of an object, are ________________ observations.

Accepted Answer

qualitative

Answer

quantitative

Answer

operational

Answer

scientific

Question 21

A florist recorded the number and cost of flower bouquets that were sold daily and recorded the data below. What is the frequency of a bouquet that cost at least $40?

Accepted Answer

15

Answer

2

Answer

22

Answer

37

Question 22

Why is this a bar chart and not a histogram?

Accepted Answer

It's based on categorical data

Answer

It's based on quantitative data

Question 23

What is the shape of the distribution?

Accepted Answer

Skewed Right

Answer

Skewed Left

Answer

Symmetric

Answer

Bimodal

Question 24

Which of the following best describes the shape of the distribution?

Accepted Answer

SKEWED LEFT

Answer

SKEWED RIGHT

Answer

UNIFORM

Answer

SYMMETRICAL

Question 25

A(n) ____ of a data set is much greater or much less than the other data values.

Accepted Answer

outlier

Answer

mean

Answer

median

Answer

mode

Question 26

Which of the boxplots has the larger interquartile range?

Accepted Answer

male

Answer

female

Answer

they're the same

Answer

impossible to tell

Question 27

Four data sets are shown below.
Set 1: {10, 19, 38, 50, 51}
Set 2: {5, 21, 26, 39, 51}
Set 3: {9, 38, 50, 50, 51}
Set 4: {5, 28, 28, 28, 51}
Which data set has the largest standard deviation?

Accepted Answer

Set 1

Answer

Set 2

Answer

Set 3

Answer

Set 4

Question 28

What does variance represent?

Accepted Answer

How spread out each data value is from the mean.

Answer

How many different variations are in the data set.

Answer

How the population varies compared to the sample.

Answer

The range, but with a bunch of other stuff going on.

Question 29

Spongebob has analyzed how many Krabby Patties he has made over the past week:

55, 62, 78, 66, 90, 101, 99

What is Spongebob's mean and standard deviation?

Accepted Answer

mean = 78.7

SD = 17.1

Answer

mean = 75.5

SD = 16.6

Answer

mean = 81.1

SD = 18.2

Answer

mean = 72.2

SD = 15.3

Question 30

Which is not part of the 5 number summary?

Accepted Answer

mean

Answer

median

Answer

Q3

Answer

Maximum

Question 31

Question 31.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 32

Which car club has the higher median?

Accepted Answer

Car Hops

Answer

Cruisers

Question 33

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

Accepted Answer

25%

Answer

50%

Answer

75%

Answer

100%

Question 34

If a data distribution has roughly the same left tail as it does right tail, we call this

Accepted Answer

symmetric

Answer

outliers

Answer

positively skewed

Answer

bimodal

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