In a pie chart, the angle of a sector for a category with frequency 30 out of total 120 is: MCQ with Answer and Explanation

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In a pie chart, the angle of a sector for a category with frequency 30 out of total 120 is:

A. 60°

B. 120°

C. 90°

D. 30°

Answer: Option C

Solution (By JKSSB Mock Tests)

Angle = (30/120) × 360 = 90°.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Given the following ASFR (per 1000 women) for 5-year age groups: 15-19:20, 20-24:150, 25-29:120, 30-34:80, 35-39:30, 40-44:10, 45-49:5. The TFR (children per woman) is approximately:

A. 1.5

B. 2.075

C. 2.08

D. 415

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Correct Answer: Option B

Explanation:
Sum of ASFRs = 415 per 1000. TFR = 5 × 415/1000 = 2075/1000 = 2.075 children per woman.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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For two attributes, the number of ultimate class frequencies is:

A. 9

B. 2

C. 4

D. 8

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Correct Answer: Option C

Explanation:
With two attributes, there are 2² = 4 mutually exclusive classes (AB, Aβ, αB, αβ).

This question belongs to: Accountancy and Statistics Statistics

Question #3

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A card is drawn from a standard deck. Probability it is a king or a heart is:

A. 4/13

B. 16/52

C. 17/52

D. 1/4

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Correct Answer: Option B

Explanation:
P(king ∪ heart) = P(king) + P(heart) - P(king of hearts) = 4/52 + 13/52 - 1/52 = 16/52.

This question belongs to: Accountancy and Statistics Statistics

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