Question

According to an article in the American Heart Association’s publication Circulation, 24% of patients who had been hospitalized for an acute myocardial infarction did not fill their cardiac medication by the seventh day of being discharged (Ho, Bryson & Rumsfeld, 2009). Suppose there are twelve people who have been hospitalized for an acute myocardial infarction.

j.)   Find the mean, variance, and standard deviation of the number of patients who did not fill their cardiac medication.

k.) Write the probability distribution.

l.) Draw a histogram

m.) Describe the shape of the histogram.

Answer 1

x	P(x)
0	0.0371
1	0.1407
2	0.2444
3	0.2573
4	0.1828
5	0.0924
6	0.0340
7	0.0092
8	0.0018
9	0.0003
10	0.0000
11	0.0000
12	0.0000

The distribution is right skewed.

To find the probability excel function binomdist(x,12,0.24,0)