Electronis Discussion
Ask us anything
Toggle navigation
GO Electronics
Email or Username
Password
Remember
Login
Register

I forgot my password
Activity
Questions
Unanswered
Tags
Subjects
Users
Ask
New Blog
Blogs
Exams
Recent questions tagged variance
0
votes
0
answers
1
GATE EC 2021  Question: 3
Two continuous random variables $X$ and $Y$ are related as $Y=2X+3$ Let $\sigma ^{2}_{X}$ and $\sigma ^{2}_{Y}$denote the variances of $X$ and $Y$, respectively. The variances are related as $\sigma ^{2}_{Y}=2 \sigma ^{2}_{X}$ $\sigma ^{2}_{Y}=4 \sigma ^{2}_{X}$ $\sigma ^{2}_{Y}=5 \sigma ^{2}_{X}$ $\sigma ^{2}_{Y}=25 \sigma ^{2}_{X}$
asked
Feb 20
in
Probability and Statistics
by
Arjun
(
4.4k
points)

14
views
gateec2021
probabilityandstatistics
randomvariable
variance
0
votes
0
answers
2
GATE ECE 2015 Set 3  Question: 50
The variance of the random variable $X$ with probability density function $f(x)=\dfrac{1}{2}\mid x \mid e^{ \mid x \mid}$ is __________.
asked
Mar 28, 2018
in
Probability and Statistics
by
Milicevic3306
(
15.8k
points)

19
views
gate2015ec3
numericalanswers
probabilityandstatistics
propability
randomvariable
variance
0
votes
0
answers
3
GATE ECE 2018  Question: 23
Let $X_{1},\:X_{2},\:X_{3}$ and $X_{4}$ be independent normal random variable with zero mean and unit variance. The probability that $X_{4}$ is the smallest among the four is ________.
asked
Feb 19, 2018
in
Probability and Statistics
by
gatecse
(
1.5k
points)

39
views
gate2018ec
numericalanswers
probabilityandstatistics
probability
randomvariable
variance
To see more, click for the
full list of questions
or
popular tags
.
Exact tag match
Welcome to GO Electronics, where you can ask questions and receive answers from other members of the community.
1,174
questions
78
answers
11
comments
43,907
users