Which is the expected value of the random variable with the given probability distribution?
a.
0
c.
1.5
b.
1
d.
2

Question

Which is the expected value of the random variable with the given probability distribution?
a.
0
c.
1.5
b.
1
d.
2

misty1212 · Answer

HI!!

anonymous · Answer

hey

misty1212 · Answer

you are missing something here 
you have the values, but not the probability of each
you need that too

anonymous · Answer

Outcome
0
1
2
3
Probability
0.25
0.25
0.25
0.25
Which is the expected value of the random variable with the given probability distribution?
a.
0
c.
1.5
b.
1
d.
2

amistre64 · Answer

the sum of x P(x)

misty1212 · Answer

like the dot product right?

amistre64 · Answer

0/4
1/4
2/4
3/4

yeah, dot product :)

anonymous · Answer

it it written in an chart of the outcomes and the probability

amistre64 · Answer

multiply each x value with its probability value

then add the results ....

yadu123 · Answer

guys do you know anything  about permutation and combinations

anonymous · Answer

heard of them yes

amistre64 · Answer

yes, but tag someone or ask in the chatbox, not in someone elses session

yadu123 · Answer

ok