Variance and Standard Deviation.... a review of the notes.
11th - 12th Grade
•12 Qs
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Variance and Standard Deviation.... a review of the notes.
Quiz
•
Mathematics
•
11th - 12th Grade
•
Medium
+4
Standards-aligned
Melissa Lute
Used 117+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the range in statistics?
(Highest + lowest)/2
Highest - lowest
(Highest - lowest)/2
(Highest - lowest)2
Tags
CCSS.6.SP.B.4
CCSS.HSS.ID.A.1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What does variance 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.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Before you can begin calculating the variance, you must first:
find the mean
find the median
find the mode
find the range
Tags
CCSS.HSS.ID.A.2
CCSS.HSS.MD.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Once you've calculated the mean, and listed the values in a table, what is the next step to calculating the variance?
Square each value in the data set
Subtract each value in the data set from the mean
Subtract the mean from each value in the data set
Add the mean to each value in the data set
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
After subtracting the mean from each value in the data set, the next step is to find the sum of those differences.
True, then square that sum.
False. Square the differences, then find the sum.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the difference between the formulas for population variance and sample variance?
The sample variance is the square root of the population variance.
The population variance divides the sum of the squares by n-1, while sample divides by N.
The population variance divides the sum of the squares by N, while sample divides by n-1.
There is no difference.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How do you calculate the standard deviation?
Divide the variance by 2.
Its a long process and I can't explain it right now.
Find the mean and multiply it by the variance.
Take the square root of the variance.
Tags
CCSS.HSS.ID.A.4
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