Measures of Center and Variation (Grade 6)
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Measures of Center and Variation
1.
Which of the following measures variation for a set of numbers?
- mode
- mean
- range
- median
2.
Which mathematical operation is used to calculate the range of a data set?
- addition
- subtraction
- multiplication
- division
3.
Look at the data set:
3, 4, 2, 9, 2, 3
Which number is an outlier of the data set?
3, 4, 2, 9, 2, 3
Which number is an outlier of the data set?
- 2
- 3
- 4
- 9
4.
What is the value of the interquartile range of the numbers below?
10, 12, 15, 17, 19, 20
10, 12, 15, 17, 19, 20
- 7
- 10
- 12
- 16
5.
Find the mean of 1, 5, and 6. What would happen to the mean if each of those numbers were increased by 3?
- The mean would stay the same.
- The mean would increase by 3.
- The mean would decrease by 3.
- Not enough information given to determine.
6.
Use the data set to answer the questions.
Marcus records the following outdoor temperatures each hour from 9:00 a.m. to 3:00 p.m.:
[math]56^deg, 59^deg, 60^deg, 63^deg, 70^deg, 73^deg, 70^deg[/math]
Marcus records the following outdoor temperatures each hour from 9:00 a.m. to 3:00 p.m.:
[math]56^deg, 59^deg, 60^deg, 63^deg, 70^deg, 73^deg, 70^deg[/math]
A.
What is the range of the temperatures?
- 17
- 63
- 64
- 70
B.
What is the mean of the temperatures?
- 17
- 63
- 64
- 70
C.
What is the median of the temperatures?
- 17
- 63
- 64
- 70
D.
Which correctly shows how to calculate the range of the temperatures?
- [math]73^deg + 56^deg[/math]
- [math]73^deg - 56^deg[/math]
- [math]70^deg + 56^deg[/math]
- [math]70^deg - 56^deg[/math]
E.
Marcus records one more temperature reading at 4:00 p.m. Which of the following temperatures would change the range of the data set?
- [math]56^deg[/math]
- [math]63^deg[/math]
- [math]70^deg[/math]
- [math]74^deg[/math]
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