Assignment.1 (Lessons 1-11)
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Question 1: Marks: 5+5=10
Give an answer of the followings:
- Define an array.
- University students have been assigned roll no’s according to their marks. Which scale of measurement is used to assign the roll numbers?
- When statistical results are misleading?
(b) Make discrete frequency distribution from the given data,
1,2,3,2,1,2,1,3, 4,5,1,2,3,1,4,2, 2,3,2,1,4,4,4,2,1,
- Cumulative frequencies
- Relative frequencies
Question 2: Marks: 2+8=10
(a) Find Geometric mean from the following data.
1, 2, 3,2,4,5,4,3,4,-1,4, 3,0,1,-3, 2,4
(b) The weight of the 40 male students at a university is given in the following frequency table:
Calculate median and mode from the above data.
Question 3: Marks: 2+2+6 =10
(a) Why Quartile deviation is better than the Rang?
(b) For given data calculate range and coefficient of range,
0.035, 0.045, 0.031, 0.044, 0.032
(c) Calculate an appropriate measure of dispersionfor the following data.
Farm Size (acre)No. of FarmsBellow 4039441-8046181-120391121-160334161-200169201-240113241 and above148
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