The Columbus Zoo conducts a study to determine whether a household's income can be used to predict the amount of money the household will give to the zoo's annual fund drive. The response variable in this study is

c.

clarify customers’ doubts only when asked.

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answer trochanter; i believe this is correct, plz check first, good luck;

all you have to do is give a good answer with details and the answer has to be understandable and then they will most likely give you the brainliest answer.