1. A group of researchers investigated the effect of a drug call pressure why on

Question

1. A group of researchers investigated the effect of a drug call pressure why on lowering blood pressure in a group of men between the ages of 50 and 70 years old. The researchers did the following experiment and obtain the indicated results: One group of 150 men took a tablet contain and pressure drop Y for three weeks - 95 of these men experience decrease blood pressure by at least 10%. Another group of 150 men were given a tablet with no added pressure drop Y or three weeks - 10 of these men experience decreased in their blood pressure by 10%. What is the dependent variable in this experiment?

A. Amount of pressure drop Y

B. Blood pressure

C. The age and gender of the participants

D. The three week time period and sample size of 150

E. The group of men that received the pills with no added pressure drop Y

Explanation / Answer

The dependent variable is what we measure in the experiment and what is affected during the experiment. the dependent variable responds to the independent variable. it is called dependent because it depends on the independent variable.

Ans: b

Blood pressure is dependent variable as it responds to independent variables.( time, age ,gender, participants, amount of pressure drop y).

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