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Health, 02.09.2019 19:10 elijaahstepp041
An experiment was designed using school children as subjects to determine whether milk prevented their catching colds. the researcher 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
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