Hypertension A national study found that treating people appropriately for high blood pressure reduced their overall mortality by 20%. Treating people adequately for hypertension has been difficult because it is estimated that 50% of hypertensives do not know they have high blood pressure, 50% of those who do know are inadequately treated by their physicians, and 50% who are appropriately treated fail to follow this treatment by taking the right number of pills. 4.30 What is the probability that among 10 true hypertensives at least 50% are being treated appropriately and are complying with this treatment? 4.31 What is the probability that at least 7 of the 10 hypertensives know they have high blood pressure? 4.32 If the preceding 50% rates were each reduced to 40% by a massive education program, then what effect would this change have on the overall mortality rate among true hypertensives; that is, would the mortality rate decrease and, if so, what percentage of deaths among hypertensives could be prevented by the education program?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Hypertension
A national study found that treating people appropriately for
high blood pressure reduced their overall mortality by 20%.
Treating people adequately for hypertension has been difficult because it is estimated that 50% of hypertensives do
not know they have high blood pressure, 50% of those who
do know are inadequately treated by their physicians, and
50% who are appropriately treated fail to follow this treatment by taking the right number of pills.
4.30 What is the
complying with this treatment?
4.31 What is the probability that at least 7 of the 10 hypertensives know they have high blood pressure?
4.32 If the preceding 50% rates were each reduced to
40% by a massive education program, then what effect
would this change have on the overall mortality rate among
true hypertensives; that is, would the mortality rate decrease
and, if so, what percentage of deaths among hypertensives
could be prevented by the education program?
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