1
Q
Average
A
Sum / Number of units
2
Q
Sum
A
Average x Number of Units
3
Q
Standard Deviation
A
The larger the standard deviation, the wider the data set range
4
Q
What is a median
A
The middle value in a list of values placed in increasing order
5
Q
What is the standard deviation of {5, 5, 5, 5, 5}
A
0
6
Q
What is a mode
A
most frequent data point
7
Q
What is a mean
A
The average
8
Q
How do you calculate a range?
A
largest - smallest
9
Q
How do you calculate the number of units in a data set?
A
largest - smallest + 1
GMAT
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