Cpm Statistics

Quiz
•
Mathematics
•
7th Grade
•
Hard
Anthony Clark
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does standard deviation represent?
How many different variations are in the data set.
How the population varies compared to the sample.
How spread out each data value is from the mean.
The range, but with a bunch of other stuff going on.
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points closest to the mean?
1
2
3
4
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
All of the below sets have the same mean.
Set 1-Standard Deviation=3.1
Set 2-Standard Deviation=4.9
Set 3-Standard Deviation=1.7
Set 4-Standard Deviation=3.2
Which set of data probably has the points furthest to the mean?
1
2
3
4
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The table on the right shows the statistics for the number of hours of homework per night during Term 1 and Term 2 for a group of students. What must be true?
Term 1 students spent less time on homework than Term 2, but there was more variation in the number of hours spent on the homework.
Term 2 students spent less time on homework than Term 1, but there was more variation in the number of hours spent on the homework.
Term 1 students spent less time on homework than Term 2, but there was less variation in the number of hours spent on the homework.
Term 2 students spent less time on homework than Term 1, but there was less variation in the number of hours spent on the homework.
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The chart on the left shows the statistics on test scores in period 1 and period 5. Which is true?
The average test score is higher for period 5, but the data is more spread out.
The average test score is higher for period 1, but the data is more spread out.
The average test score is higher for period 5, and the data is more consistent (closer to the mean) than period 1.
The average test score is higher for period 1, and the data is more consistent (closer to the mean) than period 5.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
The ages of the employees at Company A tend to be closer together, than those at Company B.
True
False
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
If a bowler needs to hit exactly 6 pins, which bowler is more reliable to hit that number?
Bowler A
Bowler B
Both
Neither
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