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Recent questions tagged mathematical expectation
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STATEMENT - 1 Velocity, volume and acceleration can be taken as basic variables because STATEMENT - 2 All the three are independent from each other.
asked
Mar 31, 2019
in
Mathematics
by
kratos
random variable
class-8
class-11
introduction to statistical methods and econometrics
introduction to graphs
mathematical expectation
class-12
differentiability
methods of differentiation
+2
votes
1
answer
The maximum value of [x(x-1)+1]^1/3,0≤ x≤ 1 is
asked
Mar 27, 2019
in
Mathematics
by
kratos
random variable
class-11
jee
relations and functions
functions
jee mains
mathematical expectation
class-12
continuity
+1
vote
1
answer
If E(X+Y) =7 and E(X) =4, then find the value of E(Y).
asked
Mar 20, 2019
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+3
votes
1
answer
A *** has 6 faces marked by the given numbers as shown below: The *** is thrown once.
asked
Mar 8, 2019
in
Mathematics
by
kratos
class-11
random variables
probability
class-10
class-12
probability distributions
mathematical expectation
statistics
+2
votes
1
answer
If a fair coin is tossed 5 times, the probability that heads does not occur two or more times in a row is
asked
Mar 7, 2019
in
Mathematics
by
kratos
binomial distribution
class-12
random variable
jee main
jee
jee main 2021
mathematical expectation
+2
votes
1
answer
If E(X) = 10 and SD (X) = 12, then find E(X^2 ).
asked
Feb 26, 2019
in
Mathematics
by
kratos
class-12
random variables
class-11
theoretical distribution
mathematical expectation
statistical inference
+3
votes
1
answer
Mara ...... (see/sees) a man fishing in the lake. He ....... (warns/warn) him not to fish in the lake again.
asked
Feb 24, 2019
in
Mathematics
by
kratos
random variable
around a medicinal creeper
class-11
mathematical expectation
class-12
+2
votes
1
answer
If V(X) = 4 then find V(2X).
asked
Feb 17, 2019
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+1
vote
1
answer
State Multiplication of expectation.
asked
Feb 5, 2019
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+3
votes
1
answer
Write down the frequency density and relative frequency formulae.
asked
Jan 22, 2019
in
Mathematics
by
kratos
class-11
random variables
statistical quality control
mathematical expectation
class-12
+1
vote
1
answer
Find the mean and standard deviation for the following probability distribution.
asked
Jan 8, 2019
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+2
votes
1
answer
How many elements will be there in * (i) When a coin is tossed 3 times.
asked
Jan 1, 2019
in
Mathematics
by
kratos
mathematical expectation
random variable
class-12
+2
votes
1
answer
If X is a random variable and ‘a’ is any constant, then prove that E(ax) = aE(X) and var(ax) = a^2var(x).
asked
Dec 31, 2018
in
Mathematics
by
kratos
random variable
client side scripting using java script
class-11
random variables
probability
acet
mathematical expectation
class-12
+2
votes
1
answer
For the following probability distribution, find mean and variance.
asked
Dec 29, 2018
in
Mathematics
by
kratos
class-11
random variables
theoretical distribution
mathematical expectation
class-12
+2
votes
1
answer
If X is a random variable and E(X) =1.5, then what is the value of E(3 + 4X)?
asked
Dec 27, 2018
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+3
votes
1
answer
If E(X) = 3 and E(X^2 ) = 25, then find SD (X).
asked
Dec 24, 2018
in
Mathematics
by
kratos
class-11
random variables
theoretical distribution
mathematical expectation
class-12
statistical inference
+1
vote
1
answer
State Addition theorem expectation.
asked
Dec 15, 2018
in
Mathematics
by
kratos
mathematical expectation
class-11
random variables
+3
votes
1
answer
Find the intervals in which the function f given by f(x)=sinx-cosx,0≤ x≤2π
asked
Dec 10, 2018
in
Mathematics
by
kratos
random variable
jee
application of derivative
functions
jee mains
mathematical expectation
class-12
continuity
+1
vote
1
answer
In which probability distribution mean and variance are equal?
asked
Dec 8, 2018
in
Mathematics
by
kratos
class-11
random variables
theoretical distribution
mathematical expectation
class-12
+2
votes
1
answer
Suppose 10,000 tickets are sold in a lottery each for Re 1. First prize is of Rs 3000
asked
Dec 1, 2018
in
Mathematics
by
kratos
class-11
jee
random variables
probability
jee mains
mathematical expectation
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