Q. 2. Find out whether correlationship exists between the following sets of scores using Pearson’s Product Moment Coefficient of Correlation. Data X 23 23 32 34 34 45 43 22 12 12 DataY 10 10 12 14 15 19 17 10 24 25
Answer the following question in about 1000 words (wherever applicable) each. 15×3=45 Marks
1. What is descriptive statistics? Discuss the statistics techniques of organising data.
2. Find out whether correlationship exists between the following sets of scores using
Pearson’s Product Moment Coefficient of Correlation.
Data X 23 23 32 34 34 45 43 22 12 12
Data Y 10 10 12 14 15 19 17 10 24 25
3. With the help of ‘t’ test find whether significant difference exists in the scores obtained
by the two groups of students on achievement motivation.
Group A 43 34 45 56 54 56 66 43 23 21
Group B 10 9 8 7 4 5 12 12 12 14
SECTION-B
Answer the following questions in about 400 words (wherever applicable) each.
5×5=25 Marks
4. Compute mean, median, mode for the following data
23,34,45,43,32,23,43,23,43,45,56,65,67,77,34,23,12,23,45,43,12,23,23,23,23,23,34,34,
45,65,67,65,54,33,56,76,78,76,54,45,43,33,44,56,54,43,34
5. Explain linear and nonlinear relationship with suitable diagram and discuss in detail the
direction of correlation with suitable examples.
6. Compute Kendall’s tau for the following data:
9
7. Discuss the application of Chi-square test.
8. What is normal distribution? Describe deviation from normality.
SECTION-C
Answer the following in about 50 words each. 10×3=30 Marks
9. Statistics
10. Measures of dispersion
11. Point estimation and interval estimation
12. Level of significance
13. Pictograms
14. Scatter diagram
15. Outliers
16. Point- Biserial Correlation
17. Probability
18. Standard error
