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Applied Statistics Question Paper

Applied Statistics

Course:Bachelor Of Environmental Studies

Institution: Kenyatta University question papers

Exam Year:2009

KENYATTA UNIVERSITY
UNIVERSITY EXAMINATIONS 2009/2010
FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF
ENVIRONMENTAL STUDIES AND COMMUNITY DEVELOPMENT
ECD 301: APPLIED STATISTICS

DATE: TUESDAY, 22ND DECEMBER 2009

TIME: 2.00 P.M. - 4.00 P.M.

INSTRUCTIONS: Answer question ONE and any other TWO questions.

1.
Define the term “statistics”. To whom and in what way is statistics useful in

practice as far as environmental management is concerned.

(30 marks)

2.
Discuss various phases of statistics in environmental discourse.

(20 marks)

3.
Using specific examples, compare and contrast various levels of measurements

used in data collection, summary
and
analysis.
(20
marks)

4.
(a)
What
is
correlation?
(5
marks)

(b)
Using illustrations, discuss various patterns of correlation.
(15 marks)

5.
An experiment into correlation between the two variables X and Y produced the
following
data:
X 13.0 16.0 19.0 22.0 25.0 28.0
Y
36.5 37.8 40.2 39.3 41.7 43.0

(a)
Calculate Spearman’s Coefficient of rank correlation between X and Y.

(15 marks)
(b)
Interpret
the
result
in
(a)
above.
(5
marks)

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