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Alex777 [14]
3 years ago
14

Michaela is conducting an experiment on the speed of toy cars on different

English
2 answers:
Zina [86]3 years ago
5 0

Answer:

D) Michaela should use the same type of car for each trial of her

investigation.

Explanation:

vova2212 [387]3 years ago
3 0

Answer:

She shouldn't use a different car each trial, it makes the results less valid. Instead she should use the same car, and should just clean off the car after each trial.

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