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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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Definition
| 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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Definition
| 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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Definition
| 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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