Question

(a)
Calculate the quartile deviation and its co-
efficient for the following data:
Annual 250 300 325 350 375 400 600
Income
Persons 20 14 6 26
13 4
o.
(b)
Or
Given the following information X = 65 and
Y = 67, ox = 25, oy = 12.5 and r = 0.8.
Obtain (0) two regression lines and
(ii) estimate the x when y = 70 and the y
when x = 58.
1
15.
Construct cost of living index number from
the following:
Item
Index No. Weight
Food
352
48
Fuel
220
10
Clothing
230
8
Rent
160
12
Miscellaneous 190
15​

Answer 1

Answer:

hello friends here your answer

Step-by-step explanation:

(a)

Calculate the quartile deviation and its co-

efficient for the following data:

Annual 250 300 325 350 375 400 600

Income

Persons 20 14 6 26

13 4

o.

(b)

Or

Given the following information X = 65 and

Y = 67, ox = 25, oy = 12.5 and r = 0.8.

Obtain (0) two regression lines and

(ii) estimate the x when y = 70 and the y

when x = 58.

1

15.

Construct cost of living index number from

the following:

Item

Index No. Weight

Food

352

48

Fuel

220

10

Clothing

230

8

Rent

160

12

Miscellaneous 190

15