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6th Chap 5 Vocab
Collect and Organize Data
| Question | Answer |
|---|---|
| survey | a method of gathering information about a group |
| population | the entire group of individuals or objects considered for a survey |
| sample | a part of a population chosen for a survey |
| random sample | a sample in which each individual or object from the given population had an equal chance of being selected |
| unbiased sample | a sample that is representative of the population |
| biased sample | a sample that is not representative of the population |
| biased question | a question that suggests or leads to a specific response or excludes a certain group |
| cumulative frequency | a running total of frequencies, shown in a column of a frequency table |
| relative frequency | the frequency of a category of data divided by the sum of the frequencies |
| mean | the sum of a group of numbers divided by the number of addends |
| median | the middle number in a group of numbers arranged in numerical order |
| mode | the number or item that occurs the most often in a set of data |