Statistics C2 Flashcards Preview

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Flashcards in Statistics C2 Deck (11)
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1

Mode/model class

Value of the class that occurs the most

2

Median

The middle data value when they are put in order

3

Mean

Calculated by x(bar) = Σx/n

4

Mean in a frequency table

x(bar) = : = Σxf/Σf

5

Lower quartile

Q¹= ¼n

6

Upper quartile

Q³=¾n

7

Range

Difference between the largest and smallest data value

8

Interquartile range(IQR)

Q³-Q¹

9

Interpercentile range

The difference between the values of the 2 given percentiles

10

Variance σ²

MSMSM

Σx²/n - (Σx/n)²

11

Standard deviation σ

√variance