Statistics in Psychology (BPC-004)
TUTOR MARKED ASSIGNMENT
(TMA)
Course Code: BPC-004
Assignment Code: BPC-003/AST/TMA/2010-11
Marks: 100
Note : Attempt all the questions. Each question carry equal marks.
1. Define ‘Statistics’ and explain its functions and importance. 10
2. Critically evaluate different definitions of statistics and state which one may be considered the best one. 10
3. How graphical and diagrammatical presentation of data may be considered superior to tabular presentation? 10
4. Calculuate the Mean and Median of the following frequency distribution. 10
Marks No. of Students
0 - 10 3
10 - 20 6
20 - 30 5
30 - 40 8
40 - 50 15
50 - 60 6
60 - 70 10
5. Compute Standard Deviation of the following scores. 10
IQ No. of Students
80 - 84 7
85 - 89 10
90 - 94 5
95 - 99 12
100 -104 20
105 -109 25
110 -114 32
115 -119 27
120 - 124 18
6. What do you mean by Normal distribution ? Discuss the main characteristics of Normal
distribution. 10
7. In a Psychology examination the marks obtained by two groups of students are given below. Examine the significance of difference between the means of the marks obtained by the students of two groups 10
First Group : 50 49 18 20 34 22 61 60 56
Second Group : 35 30 29 28 46 15 55 54 47
8. Write a note on (5+5)
(i) Yate’s correction of continuity
(ii) Goodness of fit
9. Find Pearson product moment correlation coefficient from the following data 10
Marks in Psychology : 50 75 35 30 70 30 85 35
Marks in Statistics : 60 80 40 60 65 40 80 25
10. Explain the difference between Karl Pearson Product moment correlation coefficient and Spearman Rank correlation coefficient. 10
Ask any thing you wants...
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