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WorksheetsSample Data
Total questions: 40
Worksheet time: 2hrs 34mins
Name
Class
Date
1.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
2.
Mrs. Boyd wants to find the average height of all her students in her classes. She decides to use the first 5 people who walk in the door. Is this a good representative sample?
a)
Yes
b)
No
3.
Unbiased sampling is:
a)
when you choose the group you think will represent the sample
b)
when any member of the population is equally likely to be chosen for the sample
4.
Mr. Howard, the psychology teacher, invited his students stay after school to participate in a study on learning styles so that he could better understand how to teach them. 15 of his students participated. Is this sample of the teacher's students likely to be biased?
a)
Yes
b)
No
5.
Bryce experimented with 7 exercises from each class offered at his gym. Each class has an equal number of exercises.
Is this sample of the exercises at the gym likely to be biased?
Is this sample of the exercises at the gym likely to be biased?
a)
Yes
b)
No
6.
Brandon put on a blindfold and picked 2 jelly beans from a jar.
Is this sample of the jelly beans in the jar likely to be biased?
Is this sample of the jelly beans in the jar likely to be biased?
a)
Yes
b)
No
7.
The city of Cleansburg has 8325 registered voters. The election for mayor has 3 candidates. A telephone poll taken a day before the election of 680 voters shows these results: 306 Smith, 272 Jones, 102 Brown. Give the sample statistic estimating the percentage of the vote going to Smith.
a)
4%
b)
40%
c)
45%
d)
35%
8.
The city of Cleansburg has 8325 registered voters. The election for mayor has 3 candidates. A telephone poll taken a day before the election of 680 voters shows these results: 306 Smith, 272 Jones, 102 Brown. Give the sampling proportion for this survey.
a)
306/680
b)
680/8325
c)
272/8325
d)
102/680
9.
The city of Cleansburg has 8325 registered voters. The election for mayor has 3 candidates. A telephone poll taken a day before the election of 680 voters shows these results: 306 Smith, 272 Jones, 102 Brown. Give the sample statistic estimating the percentage of the vote going to Smith.
a)
4%
b)
40%
c)
45%
d)
35%
10.
The city of Cleansburg has 8325 registered voters. The election for mayor has 3 candidates. A telephone poll taken a day before the election of 680 voters shows these results: 306 Smith, 272 Jones, 102 Brown. Name the sampling method used for this survey.
a)
Convenience Sample
b)
Stratified Sample
c)
Systematic Sample
d)
Small Sample
11.
Several students were surveyed about their favorite drinks. 11 orange soda, 17 pepsi, 10 coke, and 12 said grape. What percent of students like coke as their favorite?
a)
2%
b)
10%
c)
20%
d)
50%
12.
A school randomly chose ten English teachers and asked them which type of juice their students would prefer. Which reason best shows why this sample is biased?
a)
The sample didn't include students.
b)
The sample is too small.
c)
The sample can only be accurate if each teacher is included in the sample
13.
The table shows the results of a survey of 200 people attending a hockey game.
The attendance for the hockey game is about 25,000 visitors each game. Based on the table, how many people out of 25,000 could be expected to buy a pennant?
The attendance for the hockey game is about 25,000 visitors each game. Based on the table, how many people out of 25,000 could be expected to buy a pennant?
a)
1,375
b)
1,650
c)
2,750
d)
3,850
14.
True or False: all samples lead to a good prediction about an entire population.
a)
True
b)
False
15.
7. What is Millersburg's Q3 value?
a)
200
b)
260
c)
220
d)
140
16.
What is the IQR of the Cruisers?
a)
4
b)
6
17.
What is the difference between the medians for the two data sets?
a)
0 tickets
b)
2 tickets
c)
4 tickets
d)
6 tickets
18.
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
19.
What is the interquartile range for the Checkers Club?
a)
4
b)
5
c)
10
d)
11
20.
Which data set shows a greater spread?
a)
Chess Club
b)
Checkers Club
c)
They have the same spread.
d)
You cannot tell from the box plots.
21.
Find the medians.
Science: _________ Math: __________
Science: _________ Math: __________
a)
science: 4.5 h; math: 3 h
b)
science: 3 h; math: 4.5 h
c)
science: 5 h; math: 5 h
d)
science: 3.5 h; math: 4 h
22.
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.
23.
What is the range in gas mileage for SUVs?
a)
2
b)
3
c)
4
d)
6
24.
What is the range in gas mileage for cars?
a)
2
b)
3
c)
4
d)
6
25.
Which car club has the higher median?
a)
Cruisers
b)
Car Hops
26.
Which statement correctly describes the shapes of the dot plots for cars and SUVs?
a)
SUVs: symmetrical
Cars: skewed left
Cars: skewed left
b)
Both are skewed left
c)
Both are symmetrical
d)
SUVs: skewed right
Cars: Skewed left
Cars: Skewed left
27.
What is the difference between the medians for cars and SUVs?
a)
0
b)
5
c)
7
28.
What is the range in gas mileage for cars?
a)
2
b)
3
c)
4
d)
6
29.
Are these dot plots symmetric?
a)
Yes
b)
No
30.
Which interval shows the greatest number of pets?
a)
15-19
b)
0-4
c)
5-9
d)
10-14
31.
What percent of students have heights between 60 inches and 66 inches?
a)
75%
b)
50%
c)
100%
d)
25%
32.
Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive?
a)
7:00-7:59 P.M.
b)
8:00–8:59 P.M.
c)
9:00–9:59 P.M.
d)
10:00–10:59 P.M.
33.
Neal is going to buy an automobile and needs to spends less than $35,000 in order to afford the monthly payment. Looking at the histogram, how many automobiles does Neal have to choose from?
a)
105
b)
35
c)
20
d)
125
34.
What is the median?
a)
62
b)
58
c)
66
d)
60
35.
What data value is the upper quartile?
a)
64
b)
62
c)
66
d)
58
36.
What data value is the upper quartile?
a)
64
b)
62
c)
66
d)
58
37.
What value is the lower quartile?
a)
66
b)
58
c)
60
d)
64
38.
What is the median of the set of data?
a)
30
b)
40
c)
45
d)
50
39.
What is the median of the data?
a)
200
b)
100
c)
90
d)
140
40.
Which box and whisker plot has the highest median?
a)
Top plot
b)
Bottom plot
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