3. People who smoke are asked to halve the number of cigarettes consumed each day so that any effect on pulse rate can be measured. Is it a survey, observation or experiment method?

1 answer
Question:

3. People who smoke are asked to halve the number of cigarettes consumed each day so that any effect on
pulse rate can be measured.
Is it a survey, observation or experiment method?

Answers

This is an experiment.

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