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WorksheetsACC Statistics Test Practice Questions
Total questions: 59
Worksheet time: 2hrs 58mins
How many siblings do you have?
Statistical
Non-statistical
What is your favorite color?
Statistical
Non-statistical
Choose the statistical question:
What time did you wake up this morning?
What time do sixth graders wake up each morning during the school week?
Choose the statistical question:
How many sixth graders ate breakfast on Monday?
How many sixth graders eat breakfast each school day?
Statistical questions should ALWAYS...
provide helpful information for someone (be relevant)
be meant for kids to answer
be asked of adults, not kids
have one right answer
Statistical questions have _____ possible answers.
zero
one
only two
two or more
What is the main purpose for asking statistical questions?
Surveying people is fun.
We can create charts with statistics.
Statistical questions help us gather data about a topic.
Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?
thirty students who are often tardy
thirty students who are rarely tardy
thirty of her friends
thirty randomly selected students from her school
At an assembly 7 out of 10 students who entered the gym were carrying a backpack. Based on this information, if 700 students were at the assembly, how many students could be expected to be carrying a backpack?
49
490
210
421
The Student Council asked every tenth student in the lunch line how they preferred to be contacted with school news. The results are shown in the table. Suppose there are 684 students at the school. How many can be expected to prefer E-mail? (just type in the number)
(a)
A bank randomly surveyed 50 of its customers by mail to find out how customers use its mobile banking service. The survey found that only 11 of the 50 customers used the service.
If the branch has 1,700 customers, about (a) customers use the mobile banking service.
*Only type in the numerical answer.
Zoie completes a report by asking 70 students across campus. She found that 48% of CIAA students do not wash their hands after using the bathroom. What is the sample size?
48
100
70
CIAA students
The table shows the results of a random survey taken at an amusement park in which they asked guests that had previously visited the park before, to name their favorite ride. Based upon the results of this survey, what inference can you make about the entire population of visitors at the amusement park that day?
The Green Dragon is the least popular ride.
The King Canyon was exactly twice as popular as the Monte Carlo.
The Ellipse is the most popular ride, with more than half of those surveyed choosing it as their favorite ride.
One-third as many people chose the Monte Carlo as chose The Green Dragon.
A principal randomly chooses 40 students from grade 5. Of these students, 9 were wearing watches. Based on this information, what is the most reasonable prediction of the number of students wearing watches in a group of 120 students?
27
9
18
80
What is the median of the data?
150
140
100
90
40
How do you calculate the IQR (interquartile range) ?
Q2 - Q1
Q1 - Q3
Q3 - Q2
Q3 - Q1
What is the interquartile range of these scores?
50
70
40
30
Find the interquartile range using the following.
Minimum: 1
Q1: 3
Median: 5
Q3: 7
Maximum: 9
8
4
5
10
What is the range of homework assignments for class 2?
(a)
What is the IQR for class 1?
(a)
What do points B and D represent on the box plot?
Mean and Mode
Mean and Median
Least and Greatest Value
First and Third Quartiles
A cell phone company recorded the number of apps on teen cell phones at the time of transfer. The information is summarized in the box plot shown below.
Based on the box plot, which of the following is not true?
75% of the cell phones had ≥ 33 apps
50% of the cell phones had ≤ 29 apps
25% of the cell phones had ≤ 23 apps
100% of the cell phones had ≥ 20 apps
Matthew conducts a survey for which he collects people’s ages. The results of Matthew’s survey are shown.
• Group 1: 40 30 20 35
• Group 2: 24 32 26 45
• Group 3: 20 36 36 30 36
Order the groups based on their mean.
Group 1
Group 3
Group 2
You want to retake two quizzes out of the five you have taken this semester.
Your scores on the other three were 86, 92, and 95. You want the mean to be 93. The range ends up being 12. What are possible scores to satisfy these conditions?
94, 98
92, 100
90, 98
94, 96
Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?
193
127
60
66
Find the median of these numbers:
4,2,7,4,3, 2, 5, 8
2
5
7
4
Find the median, mode and range:
3, 5, 7, 9, 11, 8, 3
median:6 mode:3 range:7
median:7 mode:3 range:8
Patricia recorded the prices of watches at a store. The prices are shown in the table.
Watches
Prices (dollars)
15
22
16
24
16
20
12
27
What is the median price of the watches in dollars?
18
16
19
15
The value that appears the most often in a set of data is...
mean
median
mode
range
When you are trying to find the median of a set of data and 2 numbers are left in the middle after putting them in order from least to greatest, what do you do?
List both of the numbers as the Median.
Add the two numbers together and divide by 2.
Pick the one that you want.
Subtract the two numbers.
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?
5
6
9
11
Find the mean:
28, 18, 19, 18, 17
20
18
11
19
Find the mode:
5, 0, 9, 9, 3, 0, 5, 5, 4
9
5
3
7
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 median number of miles Jenna cycled?
24
39
36
52
The table shows the heights of six basketball
players who play for the LI Lightning.
What is the median height?
130 cm
141 cm
147 cm
159 cm
140 cm
Find the Mean, Median, Mode, and Range of the Data Set:
2, 10, 6, 8, 10, 4, 10, 4, 9
Mean: (a) Median: (b) Mode: (c) Range: (d)
8
4
6
2
Find the mean of the numbers below:
4, 9, 7, 10, 5
5
6
7
8
How many times did the team score 6 runs?
2 times
3 times
4 times
5 times
What is the median number of runs scored?
(a)
What is the mode of the data?
4
5
6
7
What is the range of the data?
(a)
The mode of the data is found at which number?
0
10
3 & 5
6 & 7
What is the MEAN for this data?
80
1040
13
81
What is the interquartile range for the Checkers Club?
4
5
10
11
Which car club has the higher median?
Cruisers
Car Hops
How many students had more than 6 candy bars?
5
2
3
1
Which of the following two statements are true?
More people did over 33 push ups than who did less than 32 push ups.
There were 14 people questioned.
More people did more than 33 push ups than did less than 33 push ups.
6 people did 35 push ups
Which mean absolute deviation would have a greater variability or spread? 4.2 or 8.5?
(a)
True or false? :The larger the Mean Absolute Deviation the more consistent the data is.
True
False
Which data set is likely to have the least mean absolute deviation?
The ages of students in a middle school
The population of each state
The number of books checked out by each person that visits the library on a given day
The speed of each car on a section o highway
Reorder the data set by least MAD to greatest MAD.
The ages of students in a middle school
The population of each state
The speed of each car on a section o highway
The number of books checked out by each person that visits the library on a given day
What is the first step (1-2) when calculating the Mean Absolute Deviation?
Find the distance each value is from the mean
Find the mean of the data
Find the mean of the distances
What is the second step (3) when calculating the Mean Absolute Deviation?
Find the distance each value is from the mean
Find the mean of the distances
Find the mean of the data
What is the third step (4-5) when calculating the Mean Absolute Deviation?
Find the distance each value is from the mean
Find the mean of the data
Find the mean of the distances
What is Mean Absolute Deviation?
The mean of the data
The absolute value of the mean
The variation of data values around the mode
The rage distance between the data values and the mean
What is the mean of the data: 15, 20, 25, 17, 18
15
16
18
19
What is the mean absolute deviation of the data: 15, 20, 25, 17, 18
4.5
2.8
4
3.8
What is the absolute mean deviation of the data? 45, 55, 60, 48, 57, 52, 49 if the mean is 52.3
4.0
5
5.2
4.33
Find the Mean Absolute Deviation: 10, 9, 3, 8, 10. The Mean is 8
3
1
5
2
