Math Snap

STEP 1

1. The population size and sample size are known.
2. The goal is to obtain a systematic random sample from the population.

STEP 2

1. Calculate the interval size $k$.
2. Randomly select a starting point.
3. Select every $k$-th unit from the starting point.

STEP 3

Calculate the interval size $k$ by dividing the population size by the sample size and rounding down.
$$k = \left\lfloor \frac{\text{Population Size}}{\text{Sample Size}} \right\rfloor$$

STEP 4

Randomly select one of the first $k$ population units as the starting point.

Select every $k$-th population unit thereafter to form the sample.