1.73, 1.83, 1.57, 1.88, 1.70, 1.65
What additional information would allow you to define these numbers as data?
Age Gender Weight Ethnicity
23
1
180
18
0
126
20
139
2
19
154
202
3
Men’s Ages Women’s Ages
35
42
39
33
41
37
40
age, gender, weight, ethnicity, favorite math class
a. 40%
b. 47.5%
c. 52.5%
d. 76.2%
Male
Female
Dog
25
Cat
10
a. 25%
b. 35%
c. 40%
d. 65%
A doctor is interested in determining whether a certain medication increases the risk of high blood pressure. He randomly selects 100 people for his study - 50 who will take the medication, and 50 who will take a placebo. He checks the patients’ blood pressures weekly for six months.
A doctor is interested in determining whether a certain medication increases the risk of high blood pressure. He reviews his patients’ medical records and finds that a higher proportion of people who take the medication are suffering from high blood pressure.
Use the following information for questions (18) - (20):
A group of 500 patients who suffer from hypothyroidism, a condition in which your thyroid does not produce enough of certain hormones, were asked to participate in a study to determine the effectiveness of a new medication. The patients were randomly divided into two groups, one that was given the actual medication, and one that received a placebo pill. The results of the study are below.
Medication
Placebo
Symptoms improved
205
140
Symptoms did not
65
90
a. 41%
b. 54%
c. 65.2%
d. 75.9%
Chapter 1 Test A - Answer Key
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