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- 1. Multiple Choice
The data from how many students was recorded on this histogram?
43
4
60
15
- 2. Multiple Choice
Find the median of that data on this frequency table.
20
45
30
18
- 3. Multiple Choice
What 3 values could be entered for Wednesday, Thursday, Friday to give you a MEAN of 7?
9,6,9
2,3,5
Any 3 numbers that add up to 20.
All sevens
- 4. Multiple Choice
What is the difference between a statistical question and one that is not statistical?
The answers can show you how many of something.
Answers of statistical questions have variability (many answers). Non-statistical have no variability (one answer).
There are no answers to statistical questions.
Statistical questions are harder!
- 5. Multiple Choice
3,4,7,6,8,7,9,3,7,4
What is the mode for this data set?
3
7
7.5
9
- 6. Multiple Choice
35, 43, 81, 30, 41, 95, 103, 43, 96
What is the mean of this data set?
43
46
567
63
- 7. Multiple Choice
If there is an outlier in your data (a point very far from the other data, or a very long whisker), what is the best measure of center to use and why?
Median is best because the outlier skews the data.
Mean is best because the outlier doesn't skew the data.
Mode is always the best measure of center because it shows the most.
- 8. Multiple Choice
6, 11, 14, 4, 8, 8, 10, 9, 14
What is the mean of the data, rounded to the nearest tenth?
6.0
8.0
9.3
6.8
- 9. Multiple Choice
What are the values for the five number summary?
Min., Q1, Q2, Q3, Max
2,4,6,8,10
0, 3,5,11,20
2, 2.5, 4.5, 10.5, 18
2, 3, 5, 11, 18
- 10. Multiple Choice
What is the mean of this data, and what is a general observation you can make?
80, most students scored higher than 80
85.83, most students score 80 or higher
80, most students scored lower than 80
85.83, most students scored lower than 80
- 11. Multiple Choice
Mean will decrease.
Mean will increase.
Mean will stay the same.
- 12. Multiple Choice
Use the mean, the teacher's age, an outlier, won't affect the mean as much as the other measures.
Use the median so the teacher's age, an outlier doesn't affect the middle.
Use mode, the number on the list the most is best.
- 13. Multiple Choice
How many pieces of data are shown on this dot plot?
Max. - Min = 6-0=6
17, I counted the data
2, it is in the middle
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