x
5
16
15
12
18
12
Calculate standard deviation of the items. Also find variance.
Question No.4 (Attempt any two)
1) Why does demand curve slopes downward from left to right?
2) Calculate standard deviation from the following data.
X
5
10
15
20
25
30
35
1
2
7
11
15
10
4
1
3) Give the formula of :
a) Q3 b) Q1. c) P10. d) D5
(4x2)=8
Question No. 5 (Attempt any one question)
1) Explain law of diminishing marginal utility with the help of diagram?
2) Elaborate an overview of industrial development in Punjab since 1966? (1x6)=6
Section B
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