StemandLeaf Plots
In this assessment, you will encounter a number of different questions that will assess both your understanding of mathematics and your ability to reason quantitatively.
Instructions
(Click to Read)
Do not use a calculator in this assessment. You shouldn’t need one to answer these questions, and the extra practice with arithmetic (long division, multidigit multiplication, etc.) will just make you a better math student!
Once you input your answer, click on “Check” to see immediate feedback about the question, including an explanation. You can also skip the question and come back to it later.
You may encounter different types of questions:
 Multiple Choice
 You will see several answer choices, but only one will be correct.
 Select the correct answer choice.
 FreeResponse (OpenEnded)
 You will not see any answer choices, and only one answer is correct.
 Type your answer into the space provided.
 For fractions, input your answer as “#/#” without the quotation marks, replacing the # with numbers. For example:
 to input an answer of \(\frac{1}{2}\), type “1/2” without the quotation marks.
 For decimals less than 1, input your answer with a leading zero. For example:
 to input an answer of \(0.5\), type “0.5” without the quotation marks.
 For whole numbers, just type the number into the space provided. For example:
 to input an answer of \(5\), type “5” without quotation marks.
 ChecktheBox
 You will see several answer choices, but one or more may be correct.
 Select all correct answer choices.
Tips
(Click to Read)
 These aren’t basic math questions – they’re tricky! Read closely and make sure you know what’s being asked.
 Do calculations on paper with a pencil. You don’t get extra credit for answering in your head!
Assessment Summary
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 Review

Question 1 of 20
1. Question
This stemandleaf plot shows the number of apples purchased by all of the customers who shopped at a market one morning.
If the range of apples sold is \(26\), what is the value of \(x\)?
CorrectIncorrect 
Question 2 of 20
2. Question
This stemandleaf plot shows the number of apples purchased by all of the customers who shopped at a market one morning.
What is the mode of the data set?
CorrectIncorrect 
Question 3 of 20
3. Question
This stemandleaf plot shows the number of apples purchased by all of the customers who shopped at a market one morning.
How many customers shopped at the market that morning?
CorrectIncorrect 
Question 4 of 20
4. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
This stemandleaf plot shows the number of apples purchased by all of the customers who shopped at a market one morning.
Column A
The median of the data set
Column B
\(17\)
CorrectIncorrect 
Question 5 of 20
5. Question
This stemandleaf plot shows the ages of all the people who took a driving test one morning.
If the range is \(39\), what is the value of \(x\)?
CorrectIncorrect 
Question 6 of 20
6. Question
This stemandleaf plot shows the ages of all the people who took a driving test one morning.
How many people took their driving test that morning?
CorrectIncorrect 
Question 7 of 20
7. Question
This stemandleaf plot shows the ages of all the people who took a driving test one morning.
What is the median of the data set?
CorrectIncorrect 
Question 8 of 20
8. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
This stemandleaf plot shows the ages of all the people who took a driving test one morning.
Column A
The mode of the data set
Column B
The mean of the data set
CorrectIncorrect 
Question 9 of 20
9. Question
This stemandleaf plot shows the number of minutes that students in Spencerās class spent on math homework last night.
If the range is \(41\), what is the value of \(x\)?
CorrectIncorrect 
Question 10 of 20
10. Question
Spencer asked every student in his class how many minutes they each spent on math homework last night. The stemandleaf plot shows the results of his survey.
What is the mode of the data set?
CorrectIncorrect 
Question 11 of 20
11. Question
Spencer asked every student in his class how many minutes they each spent on math homework last night. The stemandleaf plot shows the results of his survey.
What is the median of the data set?
CorrectIncorrect 
Question 12 of 20
12. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
Spencer asked every student in his class how many minutes they each spent on math homework last night. The stemandleaf plot shows the results of his survey.
Spencer spent \(45\) minutes on his math homework, but forgot to include this value in the graph above.
Column A
The change in the median if Spencer adds this value into the graph
Column B
The change in the mode if Spencer adds this value into the graph
CorrectIncorrect 
Question 13 of 20
13. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
The stemandleaf plot shows the height (in inches) of all the extended family members that Christine saw at her family reunion.
Column A
If the median is \(63\), the value of \(x\)
Column B
\(7\)
CorrectIncorrect 
Question 14 of 20
14. Question
The stemandleaf plot shows the height (in inches) of all the extended family members that Christine saw at her family reunion.
What is the range of heights in the data set?
CorrectIncorrect 
Question 15 of 20
15. Question
The stemandleaf plot shows the height (in inches) of all the extended family members that Christine saw at her family reunion.
What is the mode of the data set?
CorrectIncorrect 
Question 16 of 20
16. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
The stemandleaf plot shows the height (in inches) of all the extended family members that Christine saw at her family reunion.
The family had another reunion the following year. In that time, the five shortest people had all grown exactly one inch, and everyone else stayed the same height.
Column A
The change in the median
Column B
The change in the mean
CorrectIncorrect 
Question 17 of 20
17. Question
This stemandleaf plot shows the number of jumps that a random number of seventh graders did while jumping rope for a oneminute duration.
What is the range of jumps in the data set?
CorrectIncorrect 
Question 18 of 20
18. Question
This stemandleaf plot shows the number of jumps that a random number of seventh graders did while jumping rope for a oneminute duration.
What is the median of the data set?
CorrectIncorrect 
Question 19 of 20
19. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
This stemandleaf plot shows the number of jumps that a random number of seventh graders did while jumping rope for a oneminute duration.
Column A
The mode of the data set
Column B
\(48\)
CorrectIncorrect 
Question 20 of 20
20. Question
Using the information given, compare the quantity in Column A to the quantity in Column B.
This stemandleaf plot shows the number of jumps that a random number of seventh graders did while jumping rope for a oneminute duration.
When given an additional minute, all twenty seventh graders were able to add exactly \(20\) more jumps to their respective totals.A new stemandleaf plot (not pictured) is created to show the twominute total number of jumps, and the new graph is compared to the original graph.
Column A
The increase in the mode
Column B
The increase in the range
CorrectIncorrect