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statistics&probabili
| Question | Answer |
|---|---|
| median | is a measure of the center. it is the middle data value. |
| mode | is a measure of the center. it is the value that occurs most often. |
| range | is a measure of variability. |
| inter quartile range | is a measure of variability. it represents the difference between the third quartile and the first quartile. |
| outlier | is a data point that varies significantly from the rest of the data. |
| skewed left | if the distribution has a long tail extending to the left. |
| skewed right | if the distribution has a long tail extending to the right. |
| symmetrical | the shape perfectly symmetric, because it can be divided into two halves that are mirror images of each other. they do not have to be perfect symmetrical. |
| bi-modal | if the distribution has two modes or two humps. |
| uniform | the distribution of data is all the same. |
| impossible | means that some events will never happen |
| certain | means that other events will definitely happen |
| equally likely | means an event that is equally probable to occur or not to occur. |
| unlikely | events are closer to impossible also its between o and 1/2 |
| likely | event are closer to certain also its between 1/2 and 1 |
| Quartile 1 | the median of the 1st half |
| Quartile 3 | the median of the second half. |
| sample size | describes the number of data points collected in the sample. |
| probability | an event that will happen can be given a number value, or probability. |
| complement | a statistical event is the opposite of the event. all the outcomes that are not part of the original event. |
Created by:
user-1970523