The percentage frequency of a class is the class frequency divided by total frequency, multiplied by: MCQ with Answer and Explanation

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The percentage frequency of a class is the class frequency divided by total frequency, multiplied by:

A. 10

B. 1

C. 100

D. 1000

Answer: Option C

Solution (By JKSSB Mock Tests)

Percentage frequency = (class frequency / total frequency) × 100.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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For two independent events A and B, P(A)=0.2, P(B)=0.5. P(A∪B) is:

A. 0.6

B. 0.7

C. 0.1

D. 0.5

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Correct Answer: Option A

Explanation:
P(A∪B) = 0.2+0.5 - (0.2×0.5) = 0.7 - 0.1 = 0.6.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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If the mean of a distribution is 30 and the mode is 24, the distribution is:

A. Platykurtic

B. Negatively skewed

C. Symmetric

D. Positively skewed

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Correct Answer: Option D

Explanation:
Mean > Mode implies positive skewness.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The term 'urban agglomeration' in census refers to:

A. A metropolitan city only

B. A city with more than 100,000 population

C. A planned satellite town

D. An integrated urban area comprising a city and its outgrowths

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Correct Answer: Option D

Explanation:
Urban agglomeration includes a core town and contiguous urban outgrowths, like suburbs.

This question belongs to: Accountancy and Statistics Statistics

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