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WorksheetsStatistics Intro
Total questions: 50
Worksheet time: 40mins
Name
Class
Date
1.
A statistical question is defined to be:
a)
A question that involves numerical values.
b)
A question that anticipates exactly one answer.
c)
A question that anticipates a variety of different answers.
d)
There is no such thing as a statistical question.
2.
A data distribution is defined as:
a)
How data are arranged.
b)
How data is created.
c)
How data is communicated.
d)
None of the above.
3.
An outlier is:
a)
A data point that is clustered with the rest of the data.
b)
A data point with an extreme value with few other data points around it.
c)
A data point gathered from an unreliable or untrustworthy source.
d)
None of the above.
4.
You can find the center of a data distribution by:
a)
Looking for the middle number in the smallest group of data points.
b)
Looking for the middle number of all the data points, including outliers.
c)
Looking for the middle number in the largest group of data.
d)
Picking any data point and calling it a day.
5.
Symmetry refers to:
a)
The quality of being made up of exactly similar parts facing each other or around an axis.
b)
An automated communications process by which data are collected at inaccessible places and subsequently transmitted to receiving equipment for monitoring.
c)
The branch of mathematics concerned with the properties and relations of points, lines, surfaces, solids, and higher dimensional analogs.
d)
Something that has its origins in the Sim's video game.
6.
A skewed data set can be said to be:
a)
A data set that has most of its data points clustered on one side.
b)
A perfectly symmetrical data set.
c)
An unfinished data set.
d)
None of the above.
7.
Mean and average are synonyms.
a)
True
b)
False
8.
A mean (or average) is:
a)
The sum of all the numbers in a set of data.
b)
The sum of all numbers in a set of data divided by the number of data points in the set.
c)
The difference between each number in the data set.
d)
The product of all the numbers in the data set divided by the number of data points in the set.
9.
The range of a data set is:
a)
The difference between the greatest and least numbers in a data set.
b)
The difference between the midpoint and the endpoint of the data set.
c)
The distance between each data point.
d)
None of the above.
10.
The median of a data set is:
a)
The greatest extreme value of a data set when placed in greatest to least order.
b)
The middle value of a data set when placed in greatest to least order.
c)
The smallest extreme value in a data set when placed in greatest to least order.
d)
None of the above.
11.
The mode of a data set is said to be:
a)
The number that appears the least often in a data set.
b)
The number that appears the most frequently in a data set.
c)
A setting which allows better data visualization.
d)
Any number that appears only once in the data set.
12.
The range, mean, median, and mode are all examples of special numbers we call statistics.
a)
False
b)
True
13.
Identify the median in the following data set:
59, 61, 63, 63, 64, 67, 72
59, 61, 63, 63, 64, 67, 72
a)
59
b)
72
c)
67
d)
63
14.
Identify the mode of the same data set:
59, 61, 63, 63, 64, 67, 72
59, 61, 63, 63, 64, 67, 72
a)
59
b)
63
c)
67
d)
72
15.
Find the range of the same data set:
59, 61, 63, 63, 64, 67, 72
59, 61, 63, 63, 64, 67, 72
a)
12
b)
15
c)
13
d)
14
16.
A frequency table is used to:
a)
Show the number of times a data value or range of values occurs in the data set.
b)
Show how extreme each outlier is.
c)
Illustrate if a data set is skewed or symmetrical.
d)
Show how often a data set is changed.
17.
A histogram is a graph that:
a)
Uses data collected from historical sources.
b)
Uses bars to show the frequency of equal ranges or groups of data.
c)
Illustrates the history of collected data points.
d)
None of the above.
18.
A box plot shows:
a)
A distribution of data values on a square shaped graph.
b)
A distribution of data values organized into boxes on a graph.
c)
A distribution of data values on a number line.
d)
Nothing because box plots do not exist.
19.
Quartiles are:
a)
Values that divide a data set into four equal parts.
b)
Values that are quadruple the value of points in the data set.
c)
Values that divide a data set into 8 equal parts.
d)
Values that are equal to exactly a fourth of the value of points in the data set.
20.
Absolute deviation is:
a)
The distance between each data value and the median.
b)
The distance between each mode data value and the mean.
c)
The distance between each data value and the mean.
d)
The distance between each data value and the maximum.
21.
The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below:
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?
a)
5
b)
6
c)
9
d)
11
22.
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.
23.
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)
16 chapters
b)
17 chapters
c)
18 chapters
d)
20 chapters
24.
What type of correlation does this graph have?
a)
Positive
b)
Negative
c)
None
d)
All of the above
25.
What type of correlation does this graph have?
a)
Positive
b)
Negative
c)
None
d)
All of the above
26.
What is the type of correlation?
a)
Negative
b)
No association
c)
Positive
d)
All of the above
27.
What percentage of males drive sports cars?
a)
35%
b)
16.25%
c)
65%
d)
25%
28.
What percentage of SUV's are driven by women?
a)
56.25%
b)
75%
c)
83.25%
d)
86.5%
29.
The mode score on the 6th grade math 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.
30.
Identify the outlier for the given data?
23, 34, 27, 7, 30, 26, 28, 31, 34
23, 34, 27, 7, 30, 26, 28, 31, 34
a)
7
b)
23
c)
31
d)
34
31.
A data set can have more than one median?
a)
True
b)
False
32.
What is the mode in this set of data?
2, 3, 3, 4, 6, 7, 7
2, 3, 3, 4, 6, 7, 7
a)
3 and 7
b)
3
c)
7
d)
2 , 4, and 6
33.
The number of miles that Jenna cycled each week for a 7-week period is shown:
36, 42, 28, 52, 48, 36, 31
What is the mean number of miles Jenna cycled?
36, 42, 28, 52, 48, 36, 31
What is the mean number of miles Jenna cycled?
a)
31
b)
36
c)
39
d)
41
34.
What type of association would you expect between a person's math test scores and their height?
a)
Linear association
b)
Negative association
c)
Positive association
d)
No association
35.
Which kind of graph is this?
a)
Bar graph
b)
Histogram
c)
Frequency table
d)
Pie graph
36.
A factory manufactures light bulbs. The factory currently has 300 boxes of light bulbs in its warehouse. To test the quality of bulbs, Alex decides to take out a sample of bulbs and test them to see if they work. Which surveying method will give him the least valid results?
a)
Selecting ten boxes randomly, mixing the bulbs of these boxes together and then selecting ten bulbs randomly.
b)
Selecting ten boxes randomly and then selecting one bulb randomly from each box.
c)
Selecting one bulb randomly from every tenth box.
d)
Selecting one box randomly and then selecting all the bulbs from the box.
37.
True or False: Statistics is the science of conducting studies to collect, organize, summarize, analyze, and draw conclusions from data.
a)
True
b)
False
38.
Which city has a higher median?
a)
Millersburg
b)
Arcadia
39.
Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?
a)
193
b)
127
c)
60
d)
66
40.
What is the difference in the ranges?
a)
5 points
b)
10 points
c)
20 points
d)
35 points
41.
What test has a greater median?
a)
Test 1
b)
Test 2
c)
They have the same median.
d)
You cannot tell from the dot plots.
42.
On a 6-sided die, which is more likely?
a)
Rolling an odd number
b)
Rolling an even number
c)
They are both equally likely.
43.
The entire pool/set of people/objects that can be studied is called the:
a)
Population
b)
Sample
c)
Datum
d)
Probability
44.
A _______ is a portion of the population that can be used to study that population.
a)
variable
b)
parameter
c)
statistic
d)
sample
45.
A single, measured variable is a :
a)
datum
b)
data
c)
parameter
d)
proportion
46.
The chance or likelihood that something is going to occur is a:
a)
Sample
b)
Probability
c)
Proportion
d)
Variable
47.
How many students were interviewed in this survey?
a)
1
b)
5
c)
7
d)
8
48.
How many people have more than four books in their desk?
a)
7
b)
12
c)
5
d)
8
49.
When plotting points in a coordinate plane, which directions should you go first?
a)
left or right
b)
up or down
c)
left
d)
up
50.
The coordinates for the origin in the coordinate plane are________?
a)
(1,1)
b)
(0,0)
c)
(0,1)
d)
(1,0)
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