End Semester Examination, May 2022
B.Sc. (Hons.) Food Science and Technology – Fourth Semester
BIOSTATISTICS AND RESEARCH METHODOLOGY (BFST-402) Time: 3 hrs.
Max Marks: 100
No. of pages: 2 Note: Attempt FIVE questions in all; Q.1 is compulsory. Attempt any TWO questions from PART-A and TWO questions from PART-B. Marks are indicated against each question. Q.1
Answer the briefly: a) Data is classified into two types. What is the main difference between these types? [CO 1,2] [L 1] b) Statistics is the way of collecting, classifying, summarizing, analyzing and interpretation of numerical facts. List out the suitable graphical methods to represent the statistics of the data. [CO 1,2] [L 3] c) In data analysis, variable plays a vital role. What are the different types of variables? [CO 1,3] [L 2] d) Gaussian distribution is used to analyze continuous variables. Draw Gaussian (Normal) distribution curve indicating percentage levels according to the levels of standard deviation? Discuss the properties of the curve. [CO 1,4] [L 4] 4×5
PART-A Q.2
Data is very essential for the validation of decision making and experimental research such as surveys and descriptive researches. Discuss the types of methods involved in the collection of primary data and secondary. [CO 1,2] [L 3] 20
Q.3
The data of the residents according to their age is given below: Age (Years
No. of Residents
0-10 10-20 20-30
150 300 500
30-40 40-50 50-60 60-70 70-80
800 1000 900 400 100
Represent the data in the following forms: a) Histogram. b) Frequency polygon c) Ogive of less than type. d) Ogive of more than type. e) Pie Chart.
[CO1,2] [L 3] 4×5