thats the answer just look at the picture :)
for the work
Just multiply all of them and if you aren’t sure just search up how to find serfsce area
Answer:
v = 16
Step-by-step explanation:
p = 8/v and p = 1/2. Equating these two, we get 8/v = 1/2.
Inverting both sides, we get v/8 = 2.
Find the vaue of v by multiplying both sides by 8: v = 16
Answer:
P(Y=1|X=3)=0.125
Step-by-step explanation:
Given :
p(1,1)=0
p(2,1)=0.1
p(3,1)=0.05
p(1,2)=0.05
p(2,2)=0.3
p(3,2)=0.1
p(1,3)=0.05
p(2,3)=0.1
p(3,3)=0.25
Now we are supposed to find the conditional mass function of Y given X=3 : P(Y=1|X=3)
P(X=3) = P(X=3,Y=1)+P(X=3,Y=2) +P(X=3,Y=3)
P(X=3)=p(3,1) +p(3,2) +p(3,3)
P(X=3)=0.05+0.1+0.25=0.4
![P(Y=1|X=3)=\frac{P(X=3,Y=1)}{P(X=3)} =\frac{p(3,1)}{P(X=3)}=\frac{0.05}{0.4}= 0.125](https://tex.z-dn.net/?f=P%28Y%3D1%7CX%3D3%29%3D%5Cfrac%7BP%28X%3D3%2CY%3D1%29%7D%7BP%28X%3D3%29%7D%20%3D%5Cfrac%7Bp%283%2C1%29%7D%7BP%28X%3D3%29%7D%3D%5Cfrac%7B0.05%7D%7B0.4%7D%3D%200.125)
Hence P(Y=1|X=3)=0.125