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A recent 10-year study conducted by a research team at the Medical School was co

ID: 2934059 • Letter: A

Question

A recent 10-year study conducted by a research team at the Medical School was conducted to assess how age, blood pressure, and smoking relate to the risk of strokes. Assume that the following data are from a portion of this study. Risk is interpreted as the probability (times 100) that the patient will have a stroke over the next 10-year period. For the smoking variable, define a dummy variable with 1 indicating a smoker and 0 indicating a nonsmoker.


Risk


Age

Blood
Pressure


Smoker

12

57

152

No

24

67

163

No

13

58

155

No

56

86

177

Yes

28

59

196

No

51

76

189

Yes

18

56

155

Yes

31

78

120

No

37

80

135

Yes

15

78

98

No

22

71

152

No

36

70

173

Yes

15

67

135

Yes

48

77

209

Yes

15

60

199

No

36

82

119

Yes

8

66

166

No

34

80

125

Yes

3

62

117

No

37

59

207

Yes

)

What is the probability of a stroke over the next 10 years for Art Speen, a 69-year-old smoker who has a blood pressure of 173?

If required, round your answer to two decimal places.


Risk


Age

Blood
Pressure


Smoker

12

57

152

No

24

67

163

No

13

58

155

No

56

86

177

Yes

28

59

196

No

51

76

189

Yes

18

56

155

Yes

31

78

120

No

37

80

135

Yes

15

78

98

No

22

71

152

No

36

70

173

Yes

15

67

135

Yes

48

77

209

Yes

15

60

199

No

36

82

119

Yes

8

66

166

No

34

80

125

Yes

3

62

117

No

37

59

207

Yes

Explanation / Answer

As, obtained from the data, the probability of a stroke over the

next 10 years for a 69 year old smoker who has a blood

pressure of 173 is = 36/100 = 0.36. (Ans).

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