Statistics for Geographers (GPLA2103)
BA. Geography and Planning - GP
Semester: Resit
Level: 200
Year: 2016
THE UNIVERSITY OF BAMENDA
FACULTY OF A RTS
Department of (Geography and Planning
Level 200 Re-sit Semester: 2016 - 2016 duration: 3 Hours Credits: 6
credits
Course: Introduction to Statistics in Geography Code. GEOP 206 Lecturers: Mr Ntoban
SECTION A: ANSWER ALL QUESTIONS
.
1. Measure of central tendency represents all of these averages except one;
a) Standard deviation b) median c) mode d) mean.
2. The arithmetic average of a group of numbers is;
a)
Mode b)mean c) median d) coefficient of index
3. The most frequent value in a data set is;
a) Mode b) median c) mean d) none of the above
4. When the mode and median lie to the left or right of the mean, the distribution is described as
5. If distribution rather lie to the left of the mean, it is described as
6. The maximum possible difference in a data set is referred to as the
7. When a whole is divided into four it is known as a
8. Is the percentage deviation from the mean;
a) Variance b) coefficient of index c) standard deviation d) mean deviation
9. 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 coefficient
10.
A
measure which shows how each value in the set varies
from
the mean is;
a) Deviation b) coefficient of deviation c) variance d) standard deviation.
11. Is the correct formula for calculating variance; .
,
)
∑
(
)
b)
∑
(
)
c)
∑
()
d)
∑
()
12. Is the correct formula for calculating spearman's rank correlation coefficient?
a)
1 −
∑
(
)
) 1 −
∑
(
)
c) ) 1 −
∑
(
)
d) ) 1 −
∑
()
13. Which is the correct interpretation of the result of the spearman's rank correlation coefficient of-6.0;
a) Weakly positive b) weakly negative c) perfectly negative d) strongly negative.
14. In Statistics Ho means
a) What is the inter-quartile range of the following set of data; 118; 110, 116, 112,115, 102, 109, 104, 108, 105,
107; a) 12 b) 10 c) 11 d) 13.
SECTION B – Answer any two questions
1) In a field work exercise carried out by level one geography students of the University of Bamenda to investigate
the variation of bed load along the long profile of River Mezam; the following data was obtained at 9 different
locations 6,3,2,4,7,9,1I,8,13
i) Calculate the variance (6mks).
ii. Calculate the standard deviation (2mks).
Iii) Calculate the coefficient of index of variation (2mks)
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2)
RIVER
DISCHARGE
RANFALL
A
12
B
17
24
C
5
19
D
9
11
E
3
15
F 27 26
G 33 29
H
25
30
13
a) i. Complete the table by inserting the missing columns. (4marks)
ii.
State the Null hypothesis (1mark).
iii.
Calculate the Spearman’s rank correlation coefficient (4marks).
iv.
Describe the relationship between rainfall and river discharge (I mark).
3. Study the hypothetical map below which shows some rural settlements lettered A to F in an area of 310km
2
and answer the questions that follow;
i. What is the nearest neighbor analysis (3marks) .
ii. Using the formula of Rn calculate the nearest neighbor index for the points ((6 marks) show all steps)).
iii. What is the significance of your result (1mark ).
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