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Flashcards in Lecture 4 Deck (9)
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1

Variance

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2

median

divides set into two

3

outlier

an extreme observation smaller than quartile1 or larger than quartile 3

4

standard deviation

the measure of how far or dispersion of a set of data from its mean

5

variance

1. find mean
2. subtract all numbers from mean
3. square found numbers
4. add results
5. divide the sum by the numbers in the set

6

formula: mean

add up all and divide by the amount there is

7

standard deviation: formula

square root of variance

8

sample variance: how to

1. find mean
2. subtract all numbers from mean
3. square found numbers
4. add results
5. divide the sum by the numbers in the set minus 1

9

sample standard deviation: formula

square root of sample variance