Basic Flashcards
1
Q
All of the following are less than 7/9 except
A
Use cross multiplication
2
Q
What is standard deviation
A
How far from the average (mean) the data points fall
3
Q
Standard deviation if all values in data set are equal
A
All numbers are the same
4
Q
How does multiplying impact standard deviation
A
Unless by 1 or -1, SD will change
5
Q
Standard deviation: adding new numbers to set
A
Changes mean
Some exceptions
6
Q
Data sufficiency: if 2 equations can be rearranged to be the same equation
A
Not enough info to solve
