GATE Engineering Mathematics: Probability and Statistics: Mean, median, mode, standard deviation, random variables, Poisson, normal and binomial distributions – Previous Year Questions
8 GATE previous year questions on Probability and Statistics: Mean, median, mode, standard deviation, random variables, Poisson, normal and binomial distributions (Engineering Mathematics, Biotechnology) with answers and explanations, from every paper.
- GATE 2021 BT Q31 – Blue, green and red balls are transferred successively from A to B in that order. The probability of their reverse transfer to A in the same order…
- GATE 2022 BT Q31 – A random variable has density p(x)=2e-2x. The probability P(1 X2) (two decimal places) is .
- GATE 2022 BT Q55 – X has mean 0.1 and variance 0.2. If Y=2X+1, the variance of Y (one decimal place) is .
- GATE 2023 BT Q33 – Two fair six-sided dice are thrown. The probability of getting 12 as the product of the numbers on the dice (rounded off to two decimal places) is .
- GATE 2023 BT Q61 – Ten playing cards numbered 1, 2, 3, ...., 10 are placed face down on a table. One card is drawn at random, its number recorded, and then replaced face…
- GATE 2026 BT Q31 – The mean of the following series is . (rounded off to three decimal places) 0.01, 0.02, 0.03, , 1
- GATE 2025 BT Q35 – Two fair six-sided dice, with sides numbered 1 to 6, are thrown once. The probability of getting 7 as the sum of the numbers on the top side of the…
- GATE 2024 BT Q31 – The six faces of a cube (die) are numbered as 1, 2, 3, 4, 5 and 6, and it is rolled once. An outcome is the observed number on the top face. If the…