Assignment # 2
MTH302 (Spring 2012)
Total marks: 20
Lecture # 23 to 29
Due date:14-06-2012

Question No. 1:

In a Rice Mill the weights (in Kilograms) of 50 packets are given below:

Find the Mean and Mode. Also, find the Median using the Empirical Relationships of Mean, Median and Mode.

Question No. 2:

Suppose that the manager of a company wants to know if there exists any correlation between the sales of the product A and the product B. Suppose that he selects a random sample of the total sales of these products in  different days of the month. If you are a manager, then how will you calculate the correlation coefficient? (Use Manual Formula)

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Idea Solution Hint:

mean=43.2
mode=40
median=40
correlation coefficient = 2.34
found these answers i am sharing. can any one plz share the formulas and solution according to these answers?

the following are the answers:
Mean=42.3
Median=16
Mode=the middle value of data= 5
ab in ka
Empirical Relationships of Mean, Median and Mode.
Mean= 21.5
Mode=1033.59
Median=86.9

Correlation coefficient = 0.77

……..

Mean = ΣFX/ ΣF

=   42.3

Mode = 40

Median using Empirical Relation

Mean – Mode = 3(Mean – Median)

Median = 1/3[mode + 2mean]

=  1/3[40 + 2(42.3)]

= 41.533