Dark Mode

Recent questions tagged random-variable

0 votes

0 answers

1

Best Open Video Playlist for Random Variables Topic | Probability
Please list out the best free available video playlist for Random Variables Topic from Probability as an answer here (only one playlist per answer). We'll then select the best playlist and add to GO classroom video lists. ... standard ones are more likely to be selected as best. For the full list of selected videos please see here

makhdoom ghaya asked in Study Resources Aug 15, 2022

by makhdoom ghaya

91 views

1 vote

0 answers

2

GATE Applied Mock Test
3 -1 1 2

yashpaneliya asked in Probability Jan 24, 2022

by yashpaneliya

343 views

11 votes

1 answer

3

GATE CSE 2021 Set 2 | Question: 22
For a given biased coin, the probability that the outcome of a toss is a head is $0.4$. This coin is tossed $1,000$ times. Let $X$ denote the random variable whose value is the number of times that head appeared in these $1,000$ tosses. The standard deviation of $X$ (rounded to $2$ decimal place) is _________

Arjun asked in Probability Feb 18, 2021

by Arjun

3.5k views

11 votes

2 answers

4

GATE CSE 2021 Set 1 | Question: 18
The lifetime of a component of a certain type is a random variable whose probability density function is exponentially distributed with parameter $2$. For a randomly picked component of this type, the probability that its lifetime exceeds the expected lifetime (rounded to $2$ decimal places) is ____________.

Arjun asked in Probability Feb 18, 2021

by Arjun

5.6k views

7 votes

1 answer

5

GATE CSE 2021 Set 1 | Question: 35
Consider the two statements. $S_1:\quad$ There exist random variables $X$ and $Y$ such that $ \left(\mathbb E[(X-\mathbb E(X))(Y-\mathbb E(Y))]\right)^2>\textsf{Var}[X]\textsf{Var}[Y]$ $S_2:\quad$ For all random variables $X$ ... $S_2$ are true $S_1$ is true, but $S_2$ is false $S_1$ is false, but $S_2$ is true Both $S_1$ and $S_2$ are false

Arjun asked in Probability Feb 18, 2021

by Arjun

4.3k views

0 votes

1 answer

6

CMI-2018-DataScience-A: 5
$\text{Description for the following question:}$ If $Z$ is a continuous random variable which follows normal distribution with mean=$0$ and standard deviation=$1$, then $\mathbb{P}(Z\leq a)=\int^a _{-\infty} \frac{\exp\{\frac{-z^2}{2}\}}{\sqrt{2\pi}}dz=\Phi(a), $ ... .02 $\int^{18} _{-\infty} \frac{1}{\sqrt{2\pi .2^2}}\exp\{-\frac{1}{2}(\frac{x-24}{2})^2\}dx$

soujanyareddy13 asked in Others Jan 29, 2021

by soujanyareddy13

411 views

0 votes

0 answers

7

CMI-2018-DataScience-A: 6
$\text{Description for the following question:}$ If $Z$ is a continuous random variable which follows normal distribution with mean=$0$ and standard deviation=$1$, then $\mathbb{P}(Z\leq a)=\int^a _{-\infty} \frac{\exp\{\frac{-z^2}{2}\}}{\sqrt{2\pi}}dz=\Phi(a), $ ... more than 0.4 less than 0.5

soujanyareddy13 asked in Others Jan 29, 2021

by soujanyareddy13

216 views

0 votes

0 answers

8

CMI-2018-DataScience-A: 7
$\text{Description for the following question:}$ If $Z$ is a continuous random variable which follows normal distribution with mean=$0$ and standard deviation=$1$ ... than $26$ months approximately equals $16\%$ is more than $15\%$ is less than $14\%$ is between $10\%$ and $15\%$

soujanyareddy13 asked in Others Jan 29, 2021

by soujanyareddy13

172 views

2 votes

1 answer

9

ISI2015-MMA-51
A permutation of $1,2, \dots, n$ is chosen at random. Then the probability that the numbers $1$ and $2$ appear as neighbour equals $\frac{1}{n}$ $\frac{2}{n}$ $\frac{1}{n-1}$ $\frac{1}{n-2}$

Arjun asked in Probability Sep 23, 2019

by Arjun

905 views

2 votes

1 answer

10

Sheldon Ross, Chapter# 4 RANDOM VARIABLES, Q.51 (9th edition page#167)
If a student copies his assignments from his friend he would get 80 marks. If he had done the assignments independently he would have scored 50 marks out of 100 and if the teacher finds he is cheating he ... , what is the probability that he will lose more marks with copying than by doing his independent work independently?

Asim Siddiqui 4 asked in Probability May 28, 2019

by Asim Siddiqui 4

694 views

1 vote

1 answer

11

A FIRST COURSE IN PROBABILITY (SHELDON ROSS),CHAPTER 4 RANDOM VARIABLES, QUESTION#43
A carnival swing ride swings to the left with probability 0.4 and to the right with probability. If the ride stops after 10 swings, what is the probability that it is exactly at the place it started?

Asim Siddiqui 4 asked in Probability May 27, 2019

by Asim Siddiqui 4

577 views

2 votes

2 answers

12

Sheldon Ross, Chapter #4, Question #13
An airline operates a flight having 50 seats. As they expect some passenger to not show up, they overbook the flight by selling 51 tickets. The probability that an individual passenger will not show up is 0.01, independent of all other ... the airline has to pay a compensation of Rs.1lakh to that passenger. What is the expected revenue of the airline?

Asim Siddiqui 4 asked in Probability May 21, 2019

by Asim Siddiqui 4

602 views

0 votes

0 answers

13

Discrete random variable

Na462 asked in Probability Feb 20, 2019

by Na462

362 views

0 votes

0 answers

14

Probability mass function
Suppose that the cdf of X is given by: F(a) ={ 0 for a < 0 1/5 for 0 ≤ a < 2 2/5 for 2 ≤ a < 4 1 for a ≥ 4. } Determine the pmf of X.

Na462 asked in Probability Feb 19, 2019

by Na462

363 views

0 votes

1 answer

15

Ace Test Series: Probability - Uniform Distribution

Na462 asked in Probability Feb 2, 2019

by Na462

683 views

1 vote

1 answer

16

GeeksforGeeks
Suppose that the running time for each process in milliseconds is an exponential random variable with parameter λ=1/20. If process P1 arrives immediately ahead of the process P2 in the running state, then the probability that process P2 will have to wait more than 20 milliseconds is ... . A 0.274 B 0.324 C 0.428 D 0.368 How to approach this. even not able to understand the question.

Ashish Goyal asked in Operating System Jan 27, 2019

by Ashish Goyal

557 views

Page:

1
2
3
4
5
next »

Recent questions tagged random-variable