FACULTY OF PHARMACY
B. Pharmacy 3/4 II-Semester (Supplementary) Examination
Subject Bio-Statistics (Pharmaco Statistics)
Time 3 hours Max. Marks 70
Note: Answer all questions. All questions carry equal marks.
1 Explain the significance of the following 14
Correlation coefficient ii) Median
iii) Regression iv) Histogram
OR
Calculate the standard deviation and coefficient of variation from the following data. 14
Age 20-30 30-40 40-50 50-60 60-70 70-80 80-90
No. of members 3 61 132 153 140 51 2
2 Explain the following 14
Binomial Distribution ii) Data collection and organization
iii) Histograms iv) Box and whisker plot
OR
What is presentation of data? Explain the different methods of diagrammatic
representation of data. 14
3 Why sampling is essential in biological studies also discuss about stratified
random sampling and systematic sampling. 14
OR
The following data relate to the expenditure of the A and B families per month.
Represent this data by a Pie diagram. 14
4 Discuss the following 14
Type I Type II errors ii) Confidence Intervals iii) Power of a test
OR
Differentiate between descriptive and inferential statistics. Discuss the
various steps involved in testing of hypothesis. 14
5 Discuss the following with example. 14
Replication and Randomization Sign Test
iii) Randomized block design T-Test
OR
Perform ANOVA for the following data and find out whether means of the
three samples differ significantly or not (Ftab at α 0.05 3.9). 14

Items of expenditure Family A Family B
Food
Rent
Clothing
Education
Transport
Miscellaneous
40
15
10
10
12
13
70
30
25
25
30
20
Sample 1 Sample 2 Sample 3
20
10
17
17
16
19
13
17
12
9
13
12
10
15
5