Question

Matilda asked 20 random people in the street if they would like to discuss what they want to do during the summer break. Seven of them said yes.

How is this sample biased?

She should have asked more people.

The people who chose to participate might not be similar to the people who didn’t.

She should have asked girls only.

Answer 1

The correct answer is C. The people who chose to participate might not be similar to the people who didn't.

I just did the assignment and got it right.

Answer 2

Answer: She should have asked more people.

Explanation:

Given: Matilda asked 20 random people in the street if they would like to discuss what they want to do during the summer break.

Here sample size=20

We can see the sample is biased because the sample size is too small.

Through them we cannot decide the answer of the population.

She should have asked more people in the street if they would like to discuss what they want to do during the summer break. Then she need to make a list of their answers in approach to the answer.