#### Random Sample

__Definition of Random Sample__

- Random sample is a sample in which every individual or element in the population has an equal chance of being selected.
- Random sample is a representative of the entire population.

__Examples of Random Sample__

- The following are examples of random samples.
- An environmentalist took 9 samples of effluents of an industry at different points.
- A teacher chose a boy and a girl from a group of equally talented boys and girls to lead a parade.

__Solved Example on Random Sample__

Chris has 4 boxes of red, green, and blue marbles. He mixed all the marbles and picked 16 marbles randomly without looking. Would he get a random sample of marbles?

**Choices:**

A. No

B. Yes

**Correct answer: B**

**Solution:**

**Step 1:** Chris picked 16 marbles randomly from the box without looking, so he doesn’t know which color marble he picked up.

**Step 2:** All the three colored marbles have equal chance of being selected.

**Step 3:** So, the event of picking up the 16 marbles is a random sample.

__Related Terms for ____Random Sample__

__Additional Links for ____Random Sample__