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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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descriptive statistics |
numerical data are used to measure and describe characteristics of groups. |
includes measures of central tendency and measures of variation |
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histogram |
a bar graph depicting a frequency disruption |
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mode |
The most frequently up occurring score in a distribution |
"most" |
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mean |
the arithmetic average of a distribution, obtained by adding the scores and then dividing by the number of |
"average" |
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median |
middle score in a distribution have to scores are above it in half I blew it |
"middle" |
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skewed distribution |
A representation of scores that lack symmetry around their average value |
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range |
The difference between the highest and lowest scores in a distribution |
high - low |
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Standard deviation |
A computed measure of how much scores vary around the mean score |
packed together or dispersed |
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normal curve |
A bell shaped curve that describes the distribution of many types of data |
most scores fall near the meaning |
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inferential statistics |
numerical data that allow one to generalize |
to infer the sample data the probability of something being true of a population |
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statistical significance |
A statistical statement of how likely it is that and obtained results occurred by chance |
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