# Biostatistics: Course Outline (419-IB)

Biostatistics is the application of statistical principles to questions and problems in medicine, public health or biology. One can imagine that it might be of interest to characterize a given population

## Course Outline

1. Description of statistics

Descriptive statistics

• What is statistics? importance of statistics
• What is biostatistics? application of statistics in biological and pharmaceutical sciences
• How samples are selected

2. Organizing and displaying data

• Vriables
• Quantitative and qualitative variables
• Univariate data
• Bivariate data
•  Random variables
• Frequency table
• Diagrams
• Pictograms
• Simple bar charts
• Multiple bar charts
• Histograms

3. Summarizing data and variation

• The mean
• The median
• The Mode
• The mean  deviation
• The variance and standard deviation
• Coefficient of variation

4. Curve fitting

• Fitting a straight line
• Fitting of parabolic or high degree curve

5. Probability

• Definitions
• Probability rules
• Probability distributions

6. Simple regression and correlation

• Introduction
• Simple linear regression model
• Correlation co-efficient

7. Test of hypothesis and significance

• Statistical hypothesis
• Level of significance
• Test of significance
• Confidence intervals
• Test involving binomial and normal distributions

8. Student “T”, “F” and chi -square distributions

• Test of significance based on ―t‖
• ―F‖and chi-Square distributions

9. Analysis of variance

• One-way classification
• Two-way classification
• Partitioning of sum of squares and degrees of freedom
• Multiple compression tests such as LSD
• The analysis of variance models

10. Statistical package

• An understanding of data analysis by using different statistical tests using various

Statistical  software’s like SPSS

• Minitab
• Statistica etc

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