bernoulli

[asi]

Please help me solve this I dont know what to do

A random variable X is Bernoulli with parameter 3/6

State and use the formula for the probability mass function of a Bernoulli random variable

Write the formula of its mass function,

compute P(X=3/6)P(X=3/6).

Compute the expectation, variance, and standard deviation of a Bernoulli random variable:
Compute E(X)
Compute Var(X)
Compute σX

 

[Steven G]

Help is certainly available here. What type of help do you need?

 

[asi]

i know how to do the expectation, variance, and stdv, I dont know how to compute the probability

 

[Steven G]

What probability are you trying to compute and what seems to be the problem with you figuring it out?

 

[Romsek]

I don't see how you could possibly compute the expectation etc. w/o being able to compute the PMF.

What are the two values the random variable can attain?
The given parameter is 3/6... which is a bit of an unusual way of writing 1/2.
So what are the probabilities of each possible value?

If you know how to do all the rest you should be able to write these down in your sleep.

 

[Steven G]

If you know how to do all the rest you should be able to write these down in your sleep.

Like Ramanujan I do my best work in my sleep-I do not make any mistakes when I sleep.
Ramanujan wrote quality papers in his sleep. How did he do this??!!