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Previous year question hub

Elementary Statistics - Probability - General Aptitude (GA) Previous Year Questions

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

4Papers
4Years
9Questions
1Topics

Elementary Statistics question pattern

Every graph below is calculated only from this selection.

Questions by year

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

Difficulty distribution

How the classified questions are distributed by difficulty.

Easy 7 77.8%
Medium 2 22.2%

Question type distribution

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

Numerical Answer Type (NAT) 5 55.6%
MCQ 4 44.4%

Subject weightage

Top subjects by unique question coverage.

General Aptitude (GA)
9 Qs

Most asked topics

Top topics across the included previous year papers.

Probability
9 Qs

Subtopic coverage

Top subtopics inside this exact selection.

Elementary Statistics
9 Qs

Paper coverage

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

Mining Engineering (MN) 2021
1 Qs
Mining Engineering (MN) 2018
1 Qs
Mining Engineering (MN) 2015
5 Qs
Mining Engineering (MN) 2014
2 Qs

Included previous year papers

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

PaperYear / sessionQuestions in this viewOpen
Mining Engineering (MN) 202120211View paper
Mining Engineering (MN) 201820181View paper
Mining Engineering (MN) 201520155View paper
Mining Engineering (MN) 201420142View paper

All Elementary Statistics previous year questions

Practice every matching question in batches of 20, with every available option.

1
2014 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 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
2014 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 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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3
2015 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2015

A coin is tossed thrice. Let X be the event that head occurs in each of the first two tosses. Let Y be the event that a tail occurs on the third toss. Let Z be the event that two tails occur in three tosses. Based on the above information, which one of the following statements is TRUE?

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4
2015 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2015
In a binomial distribution, the probability of success \( p \to 0 \) and number of trials \( n \to \infty \) such that \( \lambda = np \) approaches to a finite value. The variance of the distribution is
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5
2015 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2015
The failure data of an equipment follows an exponential distribution. If the mean time between failures is 3000 hours, the reliability of the equipment for 750 hours is ______
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6
2015 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2015
Rock bolts have length \( L = (150 + X) \) cm, where \( X \) is a random variable with probability density function \[ f(x) = \begin{cases} \frac{1}{4}(1-3x), & \text{if } -2 \leq x \leq 2 \\ 0, & \text{otherwise} \end{cases} \] If 95% of the bolt lengths (\( L \)) lie in the interval \( 150 - c \) cm to \( 150 + c \) cm, the value of \( c \) is __________
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7
2015 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2015
The properties for a bivariate distribution of two random variables \( X \) and \( Y \) are given below.
\[ E(X) = 24, \ E(Y) = 36, \ E(X^2) = 702, \ E(Y^2) = 1524, \ E(XY) = 1004 \]
The correlation coefficient between \( X \) and \( Y \) is __________
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8
2018 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2018

A six sided unbiased die with four green faces and two red faces is rolled seven times. Which of the following combinations is the most likely outcome of the experiment?

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9
2021 · General Aptitude (GA) · Probability · Elementary Statistics
Mining Engineering (MN) 2021

Two identical cube shaped dice each with faces numbered 1 to 6 are rolled simultaneously. The probability that an even number is rolled out on each dice is:

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