Statistics for Geographers (GPLA2103)
BA. Geography and Planning - GP
Semester: First Semester
Level: 200
Year: 2019
REPUBLIC OF CAMEROON
The UNIVERSITY OF BAMENDA
Peace - Work - Fatherland P.O. BOX 39 Bambili
School: ARTS Department:
GEOGRAPHY
AND
PLANNING
Lecturer(s): Dr. Achankeng/Mr Ntoban
Course Code; GPLA2103 Course Title: Statistics of Geographers Date: February 2019
Hall: Time:
Answer all questions
Question 1
River Discharge
Discharge rank
Rainfall Rainfall rank
D D squared
A
12
24
B 17
19
C 5
20
D 9
15
E 3
26
F 27
29
G 33
30
H 25
13
Study the table above which shows the relationship between rainfall and river discharge.
i. Complete the table by inserting the unfilled table.(8mks)
ii. State the null hypothesis.(link)
iii. Calculate the Spearman’s rank correlation.(8mks)
iv. State the statistical significance of the result.(3mks)
Question 2
Study the table below which shows monthly rainfall for a given station.
Month J F M A M J J A S O N D
Rainfall (mm)
0
5 25 50 190 300
280
150
120 80 0 0
v. a) Calculate the variance of rainfall at the station.(12mks)
vi. b) State the significance of your result (3mks)
Question 3
Find:
a) The variance
b) The standard deviation for the following data set: 11, 12, 13,14, 15,16,17
c) Find the mode deviation for x: 10, 15, 20, 30, 40 50, 60
f: 1,3,4, 6,3,2, 1.
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