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Mathematics
9th
grade
13.6 Measures of Central Tendency and Dispersion
21 questions
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- 1. Multiple Choice
The number of pages that Mikayla 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
- 2. Multiple Choice
At Camden's Donuts the number of donut holes in a bag can vary. Help Camden find the mode of the number of donut holes per bag described in the sample below:
12, 10, 10, 10, 13, 12, 11, 13, 10, 12, 13
13
12
11
10
- 3. Multiple Choice
On a container ship there were 30 small containers that each weighed 3 tons, 20 medium containers that each weighed 5 tons, and 10 large containers that each weighed 8 tons.
Find the mean weight of the containers on this ship.
4.5 tons
4 tons
5 tons
5.5 tons
- 4. Multiple Choice
Zerek bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is Zerek's median score?
127
155
156
193
- 5. Multiple Choice
The heights of some students are given.
158cm 172cm 164cm
164cm 167cm 159cm
What is the range of the heights?
13cm
14cm
164cm
330cm
- 6. Multiple Choice
In the last 5 games, Kevin Durant scored 22, 22, 18, 12, and 21 points. What is Durant's mean score per game?
19 points per game
95 points per game
18.6 points per game
22 points per game
- 7. Multiple ChoiceWhat do you do if there are two numbers in "the middle" when you are finding the median?Pick your favorite numberAdd the two numbers in the middle & then divide by two.They are both the medianNone of the above
- 8. Multiple ChoiceFind the median, mode and range:
3, 5, 7, 9, 11, 8, 3median:7 mode:3 range:10median:6 mode:3 range:7median:7 mode:3 range:8 - 9. Multiple Choice
The number of miles that Jenna cycled each week for a 8-week period is shown:
38, 42, 28, 52, 48, 36, 31, 25
What is the median number of miles Jenna cycled?
36
39
37
52
- 10. Multiple Choice
Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1, 0, 1, 5, 0, 3, 4. What is the average number of cavities?
14
2
7
0
- 11. Multiple Choice
If you score 76, 85, 97, and 83 on your math tests, what would your median score be?
84
90
85.25
88
- 12. Multiple Choice
Cristina read six books in January, four books in February, and eight books in March.What was the average number of books read each month?
18
6
14
7
- 13. Multiple Choice
The cost of four cell phones are $345, $400, $110, and $640.
What is the median cost?
$330
$390
$372.50
$375
- 14. Multiple Choice
What is the mode of the following data set?
5, 7, 7, 8, 12 , 12, 5, 6, 13, 12
5
7 and 5
12
no mode
- 15. Multiple Choice
The scores awarded to 25 students for an assignment were as follows:
4, 7, 5, 9, 8, 6, 7, 7, 8, 5, 6, 9, 8,
5, 8, 7, 4, 7, 3, 6, 8, 9, 7, 6, 9
What is the mode?
6
7
8
9
- 16. Multiple Choice
What is the mode in this set of numbers:
7, 14, 20, 3, 7, 14, 2, 14, 7
7
14
7 and 14
no mode
- 17. Multiple ChoiceWhich number is not the mean, median, mode, or range of the data set 4, 3, 15, 11, 3, 8, 7, 5?371211
- 18. Fill in the Blank
The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.
What is the range of the pumpkin weights?
- 19. Fill in the Blank
The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.
What is the mean of the pumpkin weights?
- 20. Fill in the Blank
The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.
What is the mode of the pumpkin weights?
- 21. Fill in the Blank
The weights (in pounds) of ten pumpkins are 22, 21, 24, 24, 5, 24, 5, 23, 24, and 24.
What is the median of the pumpkin weights?
- Answer choicesTagsAnswer choicesTags