In a survey, 40% like tea, 60% like coffee, and 20% like both. The percentage who like neither is: MCQ with Answer and Explanation

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In a survey, 40% like tea, 60% like coffee, and 20% like both. The percentage who like neither is:

A. 60%

B. 0%

C. 80%

D. 20%

Answer: Option D

Solution (By JKSSB Mock Tests)

P(T∪C)=40+60-20=80%, so neither = 100-80 = 20%.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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A box has 4 red, 3 blue, and 3 green balls. If two balls are drawn with replacement, the probability both are red is:

A. 16/100

B. 4/100

C. 9/100

D. 12/100

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Correct Answer: Option A

Explanation:
With replacement, P(red) = 4/10 = 0.4 each draw. P(both red) = 0.4 × 0.4 = 0.16 = 16/100. Replacement ensures independence between draws.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Which measure of central tendency can be used for both quantitative and qualitative (nominal) data?

A. Arithmetic mean

B. Geometric mean

C. Mode

D. Median

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Correct Answer: Option C

Explanation:
The mode identifies the most frequent category and can be applied to nominal qualitative data (e.g., favorite color), whereas mean and median require at least ordinal or numerical data.

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