A teacher selects five different random samples of 25 students each from a school and computes x̄ for each sample. The five values differ.
Sampling variability refers to which of the following?
- A
Variation within a single sample.
- B
Bias introduced by a flawed sampling design.
- Ccheck_circle
The natural variation in a statistic from one random sample to another.
- D
Differences in measurement instruments.
Explanation
Sampling variability is the natural variation in a sample statistic across repeated random samples from the same population.