22.

23.

_ Abox contains 3 white and 5 black balls,

3 ೮ 81001

Part B (Very Short Answer Questions)

Answer any ten questions.
Find the derivative of (ಸೆ -9) (x? + 9) with respect to x.

Define Marginal Cost.
For a demand function Q =120 - 10P, find elasticity of demand.

Define Index Numbers.

Define Quantity Index Number.
Define Paasche’s index number.
Define Crude Death Rate.

Define General fertility rate.

. Define Sample space.

Find P(A MB), if P(AY ஐ) =0.6, P(A)=P (B) = 0.4.
Define conditional probability.
3 balls are drawn. Find the probability that they are one
white and 2 black balls.
(10 x 2 = 20 marks)
Part C (Short Essay Questions)

Answer any six questions.

2
25. Ify =x logx, show that x” गे -x x + # = 0.

d.

26. Explain marginal revenue, marginal productivity and marginal utility

27. Explain the uses of jndex numbers.

298. Explain Laspeyre’s and Paache’s quantity index numbers.

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