An ogive is a graph of: MCQ with Answer and Explanation

Question

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An ogive is a graph of:

A. Cumulative frequency against lower class boundaries

B. Cumulative frequency against upper class boundaries

C. Frequency vs class midpoints

D. Frequency against lower limits

Answer: Option B

Solution (By JKSSB Mock Tests)

A 'less than' ogive plots cumulative frequency against the upper class boundaries.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

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Which of the following pairs of events are independent?

A. Drawing two cards without replacement from a deck: A = first is an ace, B = second is an ace.

B. Selecting a student from a class: A = student is male, B = student plays on the football team (all footballers are male).

C. Tossing a fair coin twice: A = first toss is head, B = second toss is tail.

D. Rolling a die twice: A = first roll is 5, B = sum is 10.

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Correct Answer: Option C

Explanation:
Coin tosses are independent. In A, without replacement, not independent. In B, outcome of first affects probability of sum. In D, P(B|A) >0 but P(B|A')=0, so not independent.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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In a random experiment, an event consisting of a single outcome is called:

A. Null event

B. Compound event

C. Sure event

D. Simple event

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Correct Answer: Option D

Explanation:
An elementary or simple event contains exactly one sample point.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which index number formula satisfies both time reversal and factor reversal tests?

A. Laspeyres index

B. Paasche index

C. Fisher's ideal index

D. Simple aggregative index

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Correct Answer: Option C

Explanation:
Fisher's ideal index, being the geometric mean of Laspeyres and Paasche indices, is the only common formula that satisfies both time reversal and factor reversal tests, ensuring mathematical consistency.

This question belongs to: Accountancy and Statistics Statistics

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