Chapter 1 Flashcards Preview

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Flashcards in Chapter 1 Deck (19):
1

Used to compare the distribution of a quantitative variable for two groups

Back-to-back stemplot

2

A graph of a five-number summary

Boxplot

3

A process of describing data using graphs and numerical summaries

Data analysis

4

A simple graph that shows each data value as a dot above its location on a number line

Dotplot

5

Minimum Q1 Medium Q3 Maximum

The five-number summary

6

Displays the distribution of a quantitative variable. The base of the bar covers the class, and the bar height is the class frequency or relative frequency

Histogram

7

IQR=Q3 - Q1

Interquartile range

8

The arithmetic average

Mean

9

The midpoint if a distribution, the number such that half the observation are smaller and the other half are larger

Median

10

The value or class in a statistical distribution have the greatest frequency

Mode

11

An individual value that falls outside the overall pattern of a distribution

Outlier

12

Shape, center, spread, outlier

Overall pattern

13

a set of quantitative data that is the (maximum value) minus the (minimum value)

Range

14

A statistic that is not affected very much by extreme observations

Resistant measure

15

Measures the average distance of the observations from their mean

Standard deviation (Sx)

16

If the right and left sides of a graph are approximately mirror images of each other

Symmetry

17

Standard deviation squared

Variance Sx^2

18

Lower outlier

19

>Q3 + 1.5(IQR)

Upper outlier