EASY
Earn 100

What is random sampling?

Important Questions on Collecting Data

MEDIUM

Natasha wants to find out what customers of a restaurant think of the food. She decides to interview people face-to-face.

Which method of choosing a sample should Natasha use? Give a reason for your choice.

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MEDIUM

A hospital has 250 doctors and 750 nurses. Orla plans to interview a sample of 100 staff to find out how much they enjoy their work.

She decides to choose a sample of staff using one of these methods.

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Which method is best? Give reasons for your answer.

EASY

One thousand people watch a concert. It would take a long time to interview all the people in the audience.        

HARD

Out of the given which method is best for the situation given below,
A hospital has 250 doctors and 750 nurses. Orla plans to interview a sample of 100 staff to find out how much they enjoy their work.

She decides to choose a sample of staff using one of these methods.

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Explain the answer with a reason.