Answer:
Therefore the Final Solution is
x = 1 and y = 1
Step-by-step explanation:
Given:
...............Equation ( 1 )
................Equation ( 2 )
To Find:
x = ?
y = ?
Solution:
Equating Equation ( 1 ) in Equation ( 2 ) we get

Now Substituting y = 1 in Equation ( 1 ) we get

Therefore the Final Solution is
x = 1 and y = 1
Answer:
A. E(x) = 1/n×n(n+1)/2
B. E(x²) = 1/n
Step-by-step explanation:
The n candidates for a job have been ranked 1,2,3....n. Let x be the rank of a randomly selected candidate. Therefore, the PMF of X is given as
P(x) = {1/n, x = 1,2...n}
Therefore,
Expectation of X
E(x) = summation {xP(×)}
= summation {X×1/n}
= 1/n summation{x}
= 1/n×n(n+1)/2
= n+1/2
Thus, E(x) = 1/n×n(n+1)/2
Value of E(x²)
E(x²) = summation {x²P(×)}
= summation{x²×1/n}
= 1/n
Answer:
ye i dont know but nice computer bro
Step-by-step explanation:
Answer:
wait what do you need help with
Step-by-step explanation: