In a 1994 study, 164 pregnant, HIV-positive women were randomly assigned to receive the drug AZT dur

In a 1994 study, 164 pregnant, HIV-positive women were randomly assigned to receive the drug AZT during pregnancy and 160 such women were randomly assigned to a control group that received a placebo. It turned out that 40 of the mothers in the control group gave birth to babies who were HIV-positive, compared to only 13 in the AZT group.

Which of the following situations most accurately describes this study?

Question 7 options:

1.Two quantitative variables

Two categorical variables

One quantitative variable

One categorical variable

One quantitative and one categorical variable

 

1.Two quantitative variables

2.

Two categorical variables

3.

One quantitative variable

4.

One categorical variable

5.

One quantitative and one categorical variable

 

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