Match the vocabulary word to its correct definition.

1. sample
A survey of a sample of a population that represents characteristics of the population if the sample is sufficiently large and representative of the population.
2. sample mean
A subset of data taken from a population that is of sufficiently-large size as to be representative of that population as measured by sample statistics, like the sample mean and standard deviation.
3. sample survey
The mean of a collection of samples that are all taken from a population, and which is compared to the population mean to determine if the samples are representative of the population.