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Probability and Sampling MCQs for Competitive Exams

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Probability and Sampling MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

46 MCQs Page 2

Topic Notes: Probability and Sampling

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Probability and Sampling MCQs in Agriculture are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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11
What categories of errors are typically classified as non-sampling errors in statistical research?
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12
In which probability distribution are the arithmetic mean and the variance always equal?
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13
What is the mathematical value of the combination 5C2?
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14
If a single letter is selected at random from the word 'PROBABILITY', what is the probability that the letter is a vowel?
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15
What is the probability of an event that is certain to occur?
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16
If $${\text{P}}\left( {\text{A}} \right) = {\text{P}}\left( {\text{B}} \right) = \frac{1}{3}$$ and $${\text{P}}\left( {{\text{A}} \cap {\text{B}}} \right) = \frac{1}{6}$$ . Then, the value of $${\text{P}}\left( {{\text{A}} \cup {\text{B}}} \right)$$ will be
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17
Match the following statistical parameters with their corresponding definitions or ranges.
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18
In a binomial distribution, if the mean is 10, what is the standard deviation?
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19
Given two samples of size 12 and 10 with variances 16 and 36 respectively, what are the degrees of freedom for the F-statistic?
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20
In the context of probability, what is the product of P and Q if P represents the probability of an event occurring and Q represents the probability of the event not occurring?
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