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Unit 1 Stats CP Test Review

Total questions: 37

Worksheet time: 9hrs 15mins

Name
Class
Date
1.

Determine the variable type: What's your favorite subject in school?

a)

Categorical

b)

Quantitative

2.

Determine the variable type: What is your social security number?

a)

Categorical

b)

Quantitative

3.

Determine the variable type: How many states have you visited in your lifetime?

a)

Categorical

b)

Quantitative

4.

If your teacher asked you to make categorical observations about the class’s pet hamster, which group of words might be used?

a)

A mass of 3 kg, 11 cm long, age of 16 months

b)

A mass of 3 kg, 11 cm long, cute

c)

A long hair, white and brown colored, soft

d)

A temperature, length, weight

5.

What is the frequency of bus riders?

a)

8

b)

9

c)

4

d)

5

6.

What is the relative frequency of bus riders?

a)

around 13%

b)

around 30%

c)

around 4%

d)

around 10%

7.

What percentage of the houses are semi-detached?

a)

60%

b)

40%

c)

33%

8.

The bar graph shows the number of hamburgers sold at Bob’s Burger Shack. On which days were more than 80 hamburgers sold?

a)

Wednesday and Friday

b)

Tuesday and Thursday

c)

Monday, Tuesday, and Thursday

d)

Tuesday, Wednesday, Thursday, and Friday

9.

Why is this graph misleading?

a)

x axis intervals are different

b)

y axis intervals are different

c)

y axis doesn't start at 0

d)

you can't use different colors

10.

What is wrong with this graph?

a)

Not enough information.

b)

The basketball ticket prices in 2001 were approximately 2 times as much as 1991, yet the size of the basketballs are about 4 times as big.

c)

y axis scale is not uniform

11.

What is the range for this data set?

a)

10

b)

15

c)

25

d)

30

12.

What is the median for this data set?

a)

22.5

b)

30

c)

37.5

d)

45

13.
The dot plots compare the number of raffle tickets sold by boys and girls during a school fund-raiser. Which plot has an outlier? 
a)
Girls
b)
Boys
c)
Both Plots
d)
Neither
14.
Compare the centers and spreads. 
a)
 Math has a higher median (center) and a wider spread.
b)
 Math has a higher median (center) and a smaller spread.
c)
Math has a lower median (center) and a smaller spread.
d)
Math has a lower median (center) and a wider spread.
15.
In how many games did the team score more than 20 points?
a)
8
b)
7
c)
10
d)
9
16.
Which interval shows the greatest number of pets?
a)
15-19
b)
0-4
c)
5-9
d)
10-14
17.
Is a histogram the same as a bar graph?
a)
Yes, because they both use intervals.
b)
No, because a histogram displays numerical data while a bar graph displays categorical data.
c)
Yes, because they both use bars to display data.
d)
No, because a histogram displays categorical data while a bar graph displays numerical data.
18.

What is the median test score on the 6TH Grade Math Test?

a)

78

b)

85

c)

93

d)

97

19.

What is the the third quartile (Q3) for the data on the 6TH Grade Math Test?

a)

68

b)

78

c)

85

d)

93

20.
What is the interquartile range?
a)
4
b)
6
c)
2
d)
8
21.
What do you do if there are two numbers in "the middle" when you are finding the median?
a)
Pick your favorite number
b)
Add the two numbers in the middle & then divide by two.
c)
They are both the median
d)
None of the above
22.

Which of the following best describes the process of finding the interquartile range for a set of data?

a)

Add the biggest and smallest numbers.

b)

Place the numbers in order from least to greatest and find the middle.

c)

Find the difference between the maximum and the minimum.

d)

Subtract Q1 from Q3.

23.

4. Which of the following lists all the five numbers needed to make a box plot?

a)

Mean, Median, Mode, Range, and Total

b)

Minimum, Q1, Median, Q3, and Maximum

c)

Smallest, Q1, Q2, Q3, and Q4

d)

Minimum, Maximum, Range, Mean, and Median

24.

Find the median of these numbers:

2, 5, 4, 3, 7, 5, 5,

a)

4

b)

5

c)

3

d)

6

25.
Which car club has the higher median?
a)
Cruisers
b)
Car Hops
26.
Which club has the smaller spread?
a)
Cruisers
b)
Car Hops
27.

Which of the following is NOT true about the graph?

a)

Potential outlier

b)

Centered at about 35

c)

skewed right

d)

not symmetric

28.

How would you describe the shape of the histogram?

a)

Skewed Right

b)

Skewed Left

c)

Symmetrical

29.

Which of the following measures of center should I use to describe the histogram based on its shape?

a)

Standard Deviation

b)

IQR

c)

Median

d)

Mean

30.
Which of the following best describes the shape of the distribution?
a)
SKEWED LEFT
b)
SKEWED RIGHT
c)
UNIFORM
d)
SYMMETRICAL
31.

What interval is the median located in?

a)

0 -5

b)

6-11

c)

12-17

d)

18-23

32.

A value that is much higher or much lower than the other values in a set of data.

a)

Outlier

b)

Mean

c)

Median

d)

Mode

33.

When using IQR to find outliers, which formula will identify the lower limit?

a)

Q3 - 1.5(IQR)

b)

Q1 + 1.5(IQR)

c)

Q1 - 1.5(IQR)

d)

Q3 + 1.5(IQR)

34.

Using the information below, identify which of the following values in the answer choices is an outlier:

Q1 = 3

Q2 = 7

Q3 = 12

a)

22

b)

25.5

c)

-8.5

d)

26

35.

Which of these could be a cumulative frequency graph?

a)
b)
36.

What is the interquartile range (IQR)?

a)

around 42

b)

around 73

c)

around 50

d)

around 31

37.

What percentile is a student who scored a 40% or below on the test?

a)

around 50

b)

around 22

c)

around 40

d)

around 80

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