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Question #1
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If the probability of a student passing an exam is 0.8 and the probability of another student passing is 0.7, and these events are independent, the probability that at least one passes is:
Correct Answer: Option D
Explanation:
P(at least one) = 1 - P(both fail) = 1 - (0.2×0.3) = 1 - 0.06 = 0.94.
P(at least one) = 1 - P(both fail) = 1 - (0.2×0.3) = 1 - 0.06 = 0.94.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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In data tabulation, 'footnotes' are used to:
Correct Answer: Option B
Explanation:
Footnotes provide essential clarifications, source attributions, or methodological notes that enhance table interpretability without cluttering the main data presentation.
Footnotes provide essential clarifications, source attributions, or methodological notes that enhance table interpretability without cluttering the main data presentation.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Age-specific fertility rate for age group 25-29 is 120 per 1000 women. If there are 15,000 women in this age group, the expected number of births to them is:
Correct Answer: Option D
Explanation:
Births = ASFR × (number of women) / 1000 = 120 × 15000 / 1000 = 1800.
Births = ASFR × (number of women) / 1000 = 120 × 15000 / 1000 = 1800.
This question belongs to:
Accountancy and Statistics
Statistics
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