19: Make a frequency table of the first coronary heart disease event (variable firstchd):

1. the sample in this file was selected in such a way that half of the 240 cases had not experienced coronary heart disease within 10 years, and half had. In the sample, what percentage of cases experienced sudden death? Either fatal or non-fatal myocardial infarction (MI)?
2. Do you agree or disagree with the statement "Half of the men in the study experienced coronary heart disease within 10 years. " Explain your reasoning.
3. what percentage of the deaths in your sample were attributable to fatal MI? To sudden death?
4. what percentage of men who experienced coronary heart disease experienced fatal MI's?
5. What percentage of men who experienced coronary heart disease experienced sudden death?
6. Make a bar chart that shows the distribution of type of coronary heart disease events for men who experienced coronary heart disease.

#21) Make a frequency table of the number of men who died on each day of the week (variable dayofwk). (The day of death was obtained for all causes of death, not just for coronary heart disease.)

1. Of the men who died, what percentage died on Sunday?
2. What percentage of all men in your sample died on Sunday?
3. Explain why the percentages in questions 20 a and 20 b differ. Which percentage is more useful if you are studying the likelihood of deaths on different days of the week?
4. Make a pie chart of day of death. Summarize your findings.
5. What is the mode for day of death?

#22) Generate the appropriate statistics and displays to summarize the distribution of cholesterol values and diastolic blood pressures in 1958 (variables chol58 and dbp58). Briefly summarize your results.

1. Fifteen percent of the men had serum cholesterol values below what value? Ninety percent of men had serum cholesterol levels above what value?
2. What are the quartiles for diastolic blood pressure? Within what values did the middle \(50 \%\) of the men fall?

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