11. (a)
BA = A,
Answer ALL questions.
Examine whether AB = B and
4 - 2
1 2 4
given A
and B =
3
3 6
6
-1
Or
3 2 -1
(b)
Find the rank of 7 8
0
4 6
1
12.
(a)
Calculate the compound interest for Rs. 2,500
for 4 years at 8% per annum. And also
calculate the compound interest in the above
case when interest is compounded (i) Half
yearly and (ii) Quarterly.
Or
Given the sets A = {a,b,c} and B = {b, d, e, f),
find AUB, AB and A - B.
(b)
Answers
Answered by
0
Answer:
(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
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