Flashcards in Chapter 2 Deck (15):

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## Frequency distribution

### Organized tabulation of the number of the individuals located in each category on the scale of measurement

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## Symmetrical distribution

### It is possible to draw a vertical line through the middle so the one side of the distribution is a mirror image of the other

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## Skewed distribution

### The scores tend to pile up towards one end of the scale and taper off gradually at the other end

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## Tail

### The section where the scores taper off in a distribution

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## Positively skewed

### When the tail is on the right-hand side in a skewed distribution

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## Negatively skewed

### If the tail points to the left of the skewed distribution

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## N represents what?

### Number of raw scores. Can be found by adding up the frequency column

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##
True or False:

An interval width should be used that yields about 10 intervals

### True

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##
True or false:

Intervals are listed in descending order, starting with the highest values at the top of the X column

### True

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##
True or false:

The established interval width should be relatively simple number, such as 2, 5, or 10.

### True

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##
True or False:

The value for N can be determined by counting the number of intervals in the X column

### False

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## Histograms, modified histograms, and polygon graphs are used for what kind of scales.

### Interval and ratio

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## Bar graphs are typically used for what kind of scales?

### Nominal and ordinal

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## Which kind of graph is used for all 4 kinds of scales?

### Population graphs

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