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Previous year question hub

Probability - General Aptitude (GA) Previous Year Questions

Practice Probability - General Aptitude (GA) previous year questions organised from real papers, with year-wise coverage and clear topic navigation.

2Papers
2Years
3Questions
1Topics

Probability question pattern

Every graph below is calculated only from this selection.

Questions by year

Year-wise coverage for Probability. Each bar uses a separate theme-derived color.

Difficulty distribution

How the classified questions are distributed by difficulty.

Medium 2 66.7%
Easy 1 33.3%

Question type distribution

MCQ, numerical, multiple-select and other formats found in these papers.

Numerical Answer Type (NAT) 2 66.7%
MCQ 1 33.3%

Subject weightage

Top subjects by unique question coverage.

General Aptitude (GA)
3 Qs

Most asked topics

Top topics across the included previous year papers.

Probability
3 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Elementary Statistics
3 Qs

Paper coverage

Question coverage for the most populated papers. Every active PYP paper remains listed below.

Biotechnology (BT) 2021
1 Qs
Biotechnology (BT) 2014
2 Qs

Browse by subtopics

Open a focused page built from the same verified paper data.

Elementary Statistics

Explore previous-paper coverage, trends and focused practice for Elementary Statistics.

3 questions2 papers2 years

Included previous year papers

Newest papers appear first. Sort by year, question coverage or name.

PaperYear / sessionQuestions in this viewOpen
Biotechnology (BT) 202120211View paper
Biotechnology (BT) 201420142View paper

Sample previous year questions

A varied preview from the papers represented in this selection, with every available option.

1
2014 · General Aptitude (GA) · Probability · Elementary Statistics
Biotechnology (BT) 2014
In any given year, the probability of an earthquake greater than Magnitude 6 occurring in the Garhwal Himalayas is 0.04. The average time between successive occurrences of such earthquakes is ____ years.
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2
2021 · General Aptitude (GA) · Probability · Elementary Statistics
Biotechnology (BT) 2021
There are five bags each containing identical sets of ten distinct chocolates. One chocolate is picked from each bag. The probability that at least two chocolates are identical is ______
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3
2014 · General Aptitude (GA) · Probability · Elementary Statistics
Biotechnology (BT) 2014
10% of the population in a town is HIV⁺. A new diagnostic kit for HIV detection is available; this kit correctly identifies HIV⁺ individuals 95% of the time, and HIV⁻ individuals 89% of the time. A particular patient is tested using this kit and is found to be positive. The probability that the individual is actually positive is ______
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