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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 |