Week 2 Flashcards

(9 cards)

1
Q

the normal distribution containing a single peak and two tails

A

bell curve

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2
Q

symmetrical distribution containing multiple peaks

A

bimodal distribution

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3
Q

asymmetric distribution in which one of the two tails is disproportionately longer than the other

A

skew

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4
Q

the widths of class intervals

A

bin widths

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5
Q

useful for identifying outliers and comparing distributions

A

box plot

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6
Q

the ratio of the size of the effect shown in a graph to the size of the effect shown in the data

A

lie factor

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7
Q

useful when your data are not too numerous

A

stem-and-leaf displays

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8
Q

method for displaying the shape of a distribution that is useful with a large number of observations

A

histogram

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9
Q

method for displaying the shape of a distribution that is helpful for comparing sets of data

A

frequency polygons

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