Question

A study compared people who followed the American Heart Association (AHA) diet to people who followed the Mediterranean (Med) diet, with the following results.

Disease | No Disease | Total | |

AHA | 70 | 249 | 319 |

Med | 27 | 266 | 293 |

Total | 97 | 515 | 612 |

Suppose that a study participant is chosen at random. Answer the following questions.

What is the probability that the participant was diseased if he or she followed the AHA diet? Round your answer to two decimal places.

Given that the participant was found to have disease, what is the probability that he or she followed the Mediterranean diet? Round your answer to two decimal places.

A survey of adult Americans yielded the following data:

Smoker | Non-smoker | Total | |

Four-year degree | 2 | 21 | 23 |

No four-year degree | 14 | 55 | 69 |

Total | 14 | 78 | 92 |

How many people responded to the survey?

What is the probability that a person randomly selected from among those who responded to the survey is a smoker, given that that person has a four-year degree? Round your answer to two decimal places.

What is the sample space for this experiment?

**A.** {92}

**B.** {2, 14, 21, 55}

**C.** {Four-year degree/Smoker, Four-year
degree/Non-smoker, No four-year degree/Smoker, No four-year
degree/Non-smoker}

**D.** {Smoker, Non-smoker, Four-year degree, No
four-year degree}

Answer #1

In a medical study of 605 heart attack survivors, some were
randomly assigned to a group that followed a diet recommended by
the American Heart Association (AHA) and some were randomly
assigned to a group that followed the Mediterranean Diet. After
four years, the number of patients who died from heart disease, did
not die from heart disease but developed another serious illness,
or were healthy was recorded.
Died from Heart Disease
Developed Another Illness
Healthy After Four Years
Total...

Diet
Cancers
Fatal Heart Disease
Non-Fatal Heart Disease
Healthy
Total
AHA
15
24
25
239
303
Mediterranean
7
14
8
273
302
Total
22
38
33
512
605
What is P (Fatal Heart Disease | Mediterranean Diet)?
0.0001
0.0463
0.6818
What is P (Mediterranean | Cancer)?
0.7722
0.3182
0.1157
0.0231

A 10-year study conducted by the American Heart Association
provided data on how age, blood pressure, and smoking relate to the
risk of strokes. Data from a portion of this study follow. Risk is
interpreted as the probability (times 100) that a person will have
a stroke over the next 10-year period. For the smoker variable, 1
indicates a smoker and 0 indicates a nonsmoker.
Risk
Age
Blood
Pressure
Smoker
12
57
152
0
24
67
163
0
13
58...

A 10-year study conducted by the American Heart Association
provided data on how age, blood pressure, and smoking relate to the
risk of strokes. Data from a portion of this study are contained in
the Excel Online file below. Risk is interpreted as the probability
(times 100) that a person will have a stroke over the next 10-year
period. For the smoker variable, 1 indicates a smoker and 0
indicates a nonsmoker. Construct a spreadsheet to answer the
following questions....

A 10 year study conducted by the American Heart Association
provided data on how age, blood pressure, and smoking relate to the
risk of strokes. Assume that the following data are from a portion
of the study. Risk is interpreted as the probability that the
patient will have a stroke over the next 10 year period. For the
smoking variable, define a dummy variable 1 with indicating a
smoker and 0 indicating a non-smoker.
Risk
Age
Pressure
Smoker
12
57...

The paper "Lessons from Pacemaker Implantations" gave the
results of a study that followed 89 heart patients who had received
electronic pacemakers. The time (in months) to the first electrical
malfunction of the pacemaker was summarized in the table below.
20
14
8
25
22
26
29
8
17
28
22
25
6
22
15
20
17
8
20
22
15
24
14
13
11
6
30
22
27
14
24
7
15
6
14
27
15
29
25
18...

An e-commerce Web site claims that
4
%
of people who visit the site make a purchase. Complete parts a
through e below based on a random sample of
15
people who visited the Web site.
a. What is the probability that none of the people will make
a
purchase?
The probability is
nothing
.
(Round to four decimal places as needed.)
b. What is the probability that less than 3 people will make a
purchase?
The probability is
nothing...

#46 In a survey of 2000 adults 50 years and older of whom 20%
were retired and 80% were pre-retired, the following question was
asked: Do you expect your income needs to vary from year to year in
retirement? Of those who were retired, 23% answered no, and 77%
answered yes. Of those who were pre-retired, 28% answered no, and
72% answered yes. If a respondent in the survey was selected at
random and had answered yes to the question,...

Case Study: Ellen is a 55-year-old African American woman with
multiple medical problems, including chronic back pain. She is 66
inches tall (5’6”) and weighs 286 pounds. She takes medications for
high blood pressure and hypercholesterolemia, both of which are
currently under control, and she is a non-smoker. She also takes
pain medications every day and has difficulty walking but attends a
water exercise class at the local sports center one day a week. She
states that she has been...

1. A random number generator is used to select a number from 1
to
500 ?(inclusively).
What is the probability of selecting the number 595
?
What is the probability?
2.Identify the sample space of the probability experiment and
determine the number of outcomes in the sample space.
-Randomly choosing an even number between 10 and 20,
inclusive
The sample space is?
(Use a comma to separate answers)
There are _____ outcomes in the sample space
3. Determine the number...

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