# health informatics

Exercise 1

A Saudi hospital investigated the possible ways of defining Hypertension in a local population.
The collected data are the following:

Females n1= 739

Males n2= 1257

Sample proportion = 16 females

Sample proportion = 22 males

a)   What is the proportion of females with hypertension?

b)   What is the proportion of males with hypertension?

c)   What is the proportion of patients suffering from hypertension?

Exercise 2

A group of students in a biostatistics class were asked to rate how fearful they were of exams, using a scale from 0 (absolutely no fear) to 10 (extreme fear).  Here are the data:

 Exam Phobia level Frequency 5 1 7 2 10 1 Total 4

For these 4 scores, compute the mean, median, mode, range, sample variance, and sample standard deviation.

 Y (Y-M) (Y-M)2 5 -2.25 5.0625 7 -0.25 .0625 7 -0.25 .0625 10 2.75 7.5625

Exercise 3:

Create a PowerPoint presentation with 3-5 slides explaining a biostatistics concept of your choice (from the chapters 1 to 10)

### “Order a similar paper and get 20% discount on your first order with us Use the following coupon “FIRST20”

Posted in Uncategorized