Biostatistics:103

Question 1

Data

Answer 1

Raw material that researchers use for statistical analysis .In statistics data can be defined as numbers.(height,weight,blood pressure.)

Question 2

Biostatistics

Answer 2

Collection and analysis of data.Drawing of inferences about the collection of data

Question 3

Routinely kept records

Answer 3

Organization, typically keep records from day to day activities.

Question 4

surveys

Answer 4

If the data required to answer a research question are not available from routinely kept records one must need to carry out a survey.

Question 5

Experiments

Answer 5

The data required to answer a research question.example a pharmacy based medication therapy management services

Question 6

Experiments

Answer 6

The data required to answer a research question.example a pharmacy based medication therapy management services

Question 7

External Sources

Answer 7

The data required to answer a research question may exist as published reports,research literature,data banks that are commercially available.

Question 8

variable

Answer 8

Takes on different values for different possessors example:Age of patients vaccinated in a community pharmacy and the height of patients in a clinic.

Question 9

Quantitative variable

Answer 9

Variable whose amount can be measured(height;blood pressure;age)

Question 10

Qualitative variable

Answer 10

A variable whose attributes can be measured.Example :pharmacist may be interested in counting the number of male and female patrons of her pharmacy.Counts are also called frequencies.

Question 11

Random Variable

Answer 11

Values are determined by random factors and cannot be exactly predicted in advance.

Question 12

Is the probability of the test result being positive when an individual has the disease

Answer 12

Sensitivity
Formula: a
_____
a+b