Answer:
200
Step-by-step explanation:
Nznjdjdjjxkzkkzkzkzmxmxmmxmxmmxmmxmxmxmmx
Answer:
n=
−7
5
Step-by-step explanation:
Let's solve for n.
(((−
5
7
)(x1))(x))(n)=1
Step 1: Divide both sides by (-5x^2)/7.
−5
7
nx2
−5x2
7
=
1
−5x2
7
n=
−7
/5x2
Answer:
n=
−7
5
Answer:
24240300
Step-by-step explanation:
multiply the numbers thand divide by 2.
Answer:
u = 4.604 , s = 2.903
u' = 23.025 , s' = 6.49
Step-by-step explanation:
Solution:
- We will use the distribution to calculate mean and standard deviation of random variable X.
- Mean = u = E ( X ) = Sum ( X*p(x) )
u = 1*0.229 + 2*0.113 + 3*0.114 + 4*0.076 + 5*0.052 + 6*0.027 + 7*0.031 + 8*0.358.
u = 4.604
- Standard deviation s = sqrt ( Var ( X ) = sqrt ( E ( X^2) + [E(X)]^2
s = sqrt [ 1*0.229 + 4*0.113 + 9*0.114 + 16*0.076 + 25*0.052 + 36*0.027 + 49*0.031 + 64*0.358 - 4.604^2 ]
s = sqrt ( 8.429184 )
s = 2.903
- We will use properties of E ( X ) and Var ( X ) as follows:
- Mean = u' = E (Rate*X) = Rate*E(X) = $5*u =
u' = $5*4.605
u' = 23.025
- standard deviation = s' = sqrt (Var (Rate*X) ) = sqrt(Rate)*sqrt(Var(X)) = sqrt($5)*s =
s' = sqrt($5)*2.903
u' = 6.49
