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lisov135 [29]
3 years ago
13

An experiment was designed using school children as subjects to determine whether milk prevented their catching colds. The resea

rcher randomly assigned 100 school children to two groups - one group of 50 to receive a cup of milk at school each day and the other group of 50 to receive no milk at school.
1.What is the response variable? Remember: The response variable is measured on the individual.
A) The number of children who caught a cold
B) Whether the child received a cup of milk at school each day
C) Whether the child caught a cold
D) The number of children who received a cup of milk at school each day
2.What is the explanatory variable in the milk study?
A) Whether the child received a cup of milk at school each day
B) The number of children who received a cup of milk at school each day
C) The number of children who caught colds
D) Whether the child caught a cold
Health
1 answer:
slega [8]3 years ago
6 0

Answer:

  1. C
  2. A

Explanation:

The response variable is measured on each individual. In this case the variable we must measure is whether a child caught a cold.

We must asses whether the milk is responsable for the changes in results, to assure this we must be sure that the child received a cup of milk at school each day.

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