
Mean Absolute Deviation
Authored by Gregory Hammell
Other
6th Grade
Used 18+ times

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7 questions
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1.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
After surveying 10 friends about the number of people in their households, Jack got the following answers:
1,6,2,4,4,3,5,5,2,8
What is the mean number of people per household?
Type only the number.
2.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
After surveying 10 friends about the number of people in their households, Jack got the following answers:
1,6,2,4,4,3,5,5,2,8
Calculate the MAD of the number of people per household.
Type only the number.
3.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
The teachers are trying a new method to make their scores on a standardized test less variable.
The scores before the method were:
76, 81, 85, 79, 89, 86, 84, 80, 88, 79
The scores after the method were:
79, 82, 84, 82, 77, 85, 82, 80, 78, 83
What is the mean of the BEFORE test scores?
4.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
The teachers are trying a new method to make their scores on a standardized test less variable.
The scores before the method were:
76, 81, 85, 79, 89, 86, 84, 80, 88, 79
The scores after the method were:
79, 82, 84, 82, 77, 85, 82, 80, 78, 83
What is the M.A.D. of the BEFORE test scores?
5.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
The teachers are trying a new method to make their scores on a standardized test less variable.
The scores before the method were:
76, 81, 85, 79, 89, 86, 84, 80, 88, 79
The scores after the method were:
79, 82, 84, 82, 77, 85, 82, 80, 78, 83
What is the mean of the AFTER test scores?
6.
FILL IN THE BLANK QUESTION
15 mins • 1 pt
The teachers are trying a new method to make their scores on a standardized test less variable.
The scores before the method were:
76, 81, 85, 79, 89, 86, 84, 80, 88, 79
The scores after the method were:
79, 82, 84, 82, 77, 85, 82, 80, 78, 83
What is the M.A.D. of the AFTER test scores?
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Use the M.A.D. from the before and after data to answer the following question:
Did the teachers reach their goal of making the scores less variable?
Yes. They were less variable.
No. They were just as variable.
No. They were more variable.
Yes. The mean score went up.
No. The mean score went down.
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