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Social Statistics I Question Paper

Social Statistics I

Course:Bachelor Of Education

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2008/2009
SECOND SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
ARTS
ASC 102: SOCIAL STATISTICS I

DATE: THURSDAY 20TH AUGUST 2009

TIME: 8.00AM - 10.00AM

INSTRUCTIONS: Answer any THREE questions. All questions carry equal marks.

1. a) Define
statistics.

b)
Using examples, explain the basic requirements for studying statistics.

2.
The following data was obtained in a sociological study conducted in Migingo Island.

78 27 88 32 77 72 52 79
70 42 56 86 70 49 65 78
52 43 59 73 69 46 59 71
55 39 57 42 66 44 69 63
61 62 81 34 65 83 70 63

a)
Compute a percent (%) frequency distribution using a class interval of ten (10)

and exclusive criteria.
b)
Tabulate a cumulative frequency distribution form the data.
c)
Draw a bar graph for the frequency distribution

3. The following data represents the weight of items measured by the Kenya Bureau of Standards.

94 90 96 97 97 95 99 98

88 91 84 87 90 89 93 92

83 86 84 93 90 92 87 89

93 98 94 86 83 84 86 85

83 85 83 83 97 93 85 95

a)
Calculate
the:
(i)
Mean
(ii)
Median
(iii)
Mode
b)
Give the exact upper and lower limits of the:
(i)
Median class
(ii)
Modal class

4.
(a)
What is a variable?

(b)
Categorize the following variables into either discrete or continuous.

(i)
Age
(ii)
Family
size
(iii)
Velocity
(iv)
Number of eggs of a hen
(v)
Passengers at a bus terminus
(vi)
Length

(c)
Explain at least two levels of measurement. Give examples.

Page 2 of 3

5.
The table below contains class interval data for a health research done in Malaba.

Class Interval
Frequency
2.45 - 2.55
3
2.56 - 2.66
9
2.67 - 2.77
11
2.78 - 2.88
8
2.89 - 2.99
4 n = 35

(a)
Indicate the size of the class interval.
(b)
Calculate the:
(i)
Average deviation
(ii)
Variance
(iii)
Standard deviation
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Social Statistics I Question Paper

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