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The range is the difference between the largest and the smallest observation. |
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the difference between the observation and the mean |
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If the distribution of the data is bell-shaped, then approximately: 68% of the observations fall within one standard deviation of the mean 95% of the observations fall within two standard deviations of the mean 99.7% of the observations fall within three standard deviations of the mean |
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If mean is larger than median the graph will be |
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observation - mean divided by standard deviation |
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if mean is less than the median graph is |
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larger standard deviation means |
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value in set that occurs most often |
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mid point of observations when ordered |
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difference between Q3 and Q1 |
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of how many standard deviations an observation is away from the mean |
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associationexists between two variables if a particular value for one variable is more likely to occur with certain values of the other variable |
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independent variable. It sets the way in which we classify our subjects and specifies what we hope “explains” the results of our survey or experiment. |
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It is what is known as the dependent variable. The response variable is that which we are interested in studying. |
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set of equally likely outcomes |
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the particular set of outcomes you care about |
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probability and statement |
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