Biostatistics is the application of statistics to biological and medical problems. Francis Galton is considered the father of biostatistics, developing concepts like correlation and using statistical tools and surveys to study human populations. Biostatistics has various applications in fields like physiology, pharmacology, and medicine. It is used to determine normal vs abnormal values in populations, compare variables between groups, assess drug efficacy and safety, identify disease signs and symptoms, and help determine optimal treatments.

2. Learning outcomes:
 Introduction to Biostatistics
 History of Biostatistics
 Applications of Biostatistics
Muteeullah Channa

3. Definition of Biostatistics
Biostatistics can be defined as
the development and application of
statistics to the solution of biological
problems.

4. History of Biostatistics
Francis Galton is called as the ‘Father of
Biostatistics’.
• He created the statistical concept ‘correlation’.
• The first time used statistical tool to study
differences among human population.
• Invented the use of questionnaires and
surveys for collection data human
communities.

5. Applications of Biostatistics
Biostatistics is useful in the field of Science in many ways like:
In Physiology and Anatomy
• To find or to determine the normality and abnormality of
variables (such as health, eight or height) of targeted
population.
• It is also use to find out the mean differences of same
variable of different places, time or period occur due to
external or internal factor. For E.g. to finding out mean
difference of ages or weight in Karachi and Lahore occur
due to external or internal factor.
• It is also applicable in determining relationship between
2 or more variables
• such as weight and height.

6. In Pharmacology
• In Pharmacology, it is use to determine the
effect or action of drug given to either a
person or an animal.
• It is also use to determine the comparison
between the effects, result or action of 2 or
more drug either between new one and
older one.

7. In Medical
• It is also use to determine the efficiency of drug(s)
in particular or different situations like in
treatments, emergencies or operations.
• It is also use to find association between 2 or more
attributes such as TB and Smoking.
• It is also use to find out association of one disease
with another.
• It is also applied to determine the usefulness or un-
usefulness of a particular drug in a particular time,
place or period.
• It is also help in determining to opt best possible
treatment among all for a disease.
• It helps to identify signs and symptoms of a disease
or syndrome.

8. THE END
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9. ANY QUESTION?