A scientist is investigating a new drug that will cure the common cold. The scientist should give the __________ group an empty pill, rather than the pill with the drug being tested. 1. variable 2. control

A scientist is investigating a new drug that will cure the common cold. The scientist should give the __________ group an empty pill, rather than the pill with the drug being tested.

1. variable
2. control
3. test
4. experimental

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A scientist is investigating a new drug that will cure the common cold. The scientist should give the __________ group an empty pill, rather than the pill with the drug being te…

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