Unit 1 Flashcards
0
Q
Median
A
Mid point
1
Q
Mean
A
Average
2
Q
Represented with an x and a line over it
A
Mean
3
Q
Represented with M
A
The midpoint
4
Q
What center method do outliers affect
A
Mean
5
Q
In a model skewed right
A
Mean > median
6
Q
Skewed left?
A
Mean < median
7
Q
How to find quartiles
A
Put data in order
Cut into4 sections
8
Q
IQR
A
Difference between the upper quartile and the lower quartile
9
Q
Outlier formula
A
Outlier < Q1 - 1.5(IQR)
Outlier > Q3 + 1.5(IQR)
10
Q
Five number summary for box and whisker plots
A
Min Q1 Median Q3 Max
11
Q
In a box plot, if a median is closer to the maximum
A
Skewed left
12
Q
Standard deviation
A
Average distance the observations are away from the mean
13
Q
Variance
A
Average of the square of the deviations
14
Q
How to find variance
A
Take the difference of each number
Square it
Add
Average the result
