The Laspeyres price index is 120 and the Paasche price index is 110. Fisher's index is: MCQ with Answer and Explanation

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The Laspeyres price index is 120 and the Paasche price index is 110. Fisher's index is:

A. 115.5

B. 115.0

C. 113.0

D. 114.89

Answer: Option D

Solution (By JKSSB Mock Tests)

√(120×110)=√13200≈114.89.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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In a Poisson distribution, mean = variance. If the mean is 4, the probability of exactly 2 occurrences is:

A. e^{-4} 4^2 / 2! ≈ 0.1465

B. 0.3

C. 0.1

D. 0.2

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Correct Answer: Option A

Explanation:
P(X=2) = e^{-4} × 16 / 2 = 8 e^{-4} ≈ 8×0.0183=0.1465.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The probability that a randomly selected leap year contains 53 Sundays is:

A. 3/7

B. 1/7

C. 5/7

D. 2/7

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Correct Answer: Option D

Explanation:
Leap year has 366 days = 52 weeks + 2 days. The 2 days can be Sun-Mon or Sat-Sun (2 out of 7 pairs), giving 2/7.

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Question #3

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Which of the following distributions will definitely have Mean < Median < Mode?

A. U-shaped distribution

B. Symmetrical distribution

C. Negatively skewed distribution

D. Positively skewed distribution

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Correct Answer: Option C

Explanation:
In a left-skewed (negative) distribution, extreme low values drag the mean down below the median and mode.

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