Stella thinks that if people are exposed ultraviolet light then they are more likely get skin cancer. Stella designs an experiment wherein sample A consisted of people were exposed to ultraviolet light

Stella thinks that if people are exposed ultraviolet light then they are more likely get skin cancer. Stella designs an experiment wherein sample A consisted of people were exposed to ultraviolet light and sample B was not.

What is the control group?

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Stella thinks that if people are exposed ultraviolet light then they are more likely get skin cancer. Stella designs an experiment wherein sample A consisted of people were expo…

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