Statistics for Geographers (GPLA2103)
BA. Geography and Planning - GP
Semester: First Semester
Level: 200
Year: 2017
REPUBLIC OF CAMEROON The UNIVERSITY OF BAMENDA
Peace - Work - Fatherland P.O. BOX 39 Bambili
School: ARTS Department: GEOGRAPHY AND PLANNING Lecturer(s): Dr. ACHNKENG & OBAN
Course Code: GEOP 205 Course Title: STATISTICS IN GEOGRAPHY
Date: 19/04/2017 Hall: AMPHI 340 Time: 11:30 – 2:30PM
Examination instruction(s):
Attempt all questions in section A and B and one other from section C
SECTION A:
1.
Statistic is divided into ---------------- and ------------ 1mk
2.
Data which include opinion, choices and feelings which can only be expressed in words is called?
3.
The type of data whose values are never exact is referred to as?
4.
Traffic or pedestrian count is considered as which type of data source?
5.
In statistics Ho means?
6.
A method of displaying data where values of the variables are grouped into classes is called?
a) Frequency polygon b) Bar chart c) Histogram d) Pie chart
7.
The mathematical calculation to show how wide the spread of a variable is, is known as
a) Variance b) Coefficient of index c) Standard deviation d) Spearman's rank correlation
8.
Which is the correct interpretation of the result of spearman's rank correlation coefficient of -6.0?
a) Weakly positive b) Weakly negative c) Strongly negative d) Perfectly negative
9.
Is the formula for calculating the spearman's rank correlation coefficient?
a) 1
−
∈
()
b) 1
−
∈
(
)
c
) 1
−
∈
(
)
d)
1
−
∈
( )
10. Is the formular for calculating variance?
a)
∑
()
b)
∑
(
)
c)
∑
()
d)
∑
()
Section B
Rainfall data in a place for one year was as follows:
Month
J
F
M
A
M
J
J
A
S
O
N
D
Rainfall (mm)
230
175
145
35
2
0
0
0
0
0
63
168
1.
Find a) Arithmetic mean b) Mode c) Median
2.
Where is the place found? (Is it in the Northern hemisphere or Southern hemisphere?) and why? (Not more than
5 lines).
3.
Which of the three central tendencies above best represent the situation of rainfall in the place?
4.
Give two limitations for each of the following: Arithmetic average, mode, median.
SECTION C: Answer any one of the following questions
1. Study the table below and answer the questions that follow
Population
Functions
10.000
24
5.000
11
21.000
20
1.000
6
30.000
30
9.000
12
2. Using the following data, 11, 6, 21, 17, 30, 42, 27, 14, 5, 9, 23
i) Calculate the inter-quartile range (1mk) ii) Calculate the variance (4mks) iii) Standard deviation and
interpret results
ii) Find the coefficient of index
i.
Establish a new table by inserting the missing columns (5mks)
ii.
State the hypothesis (1mks)
iii.
Calculate the spearman's rank correlation (3mks)
iv.
Interpret your results (1mks)
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