Answer:
24
Step-by-step explanation:
xy = k
Filling in given values, we have ...
12·6 = k = 3·y
y = 12·6/3 = 24
y is 24 when x is 3.
Answer:
Step-by-step explanation:
Note: If you have any queries related the answer please do comment. I would be very happy to resolve all your queries.
Firstly we will make PMF
For X=0, P=(4/5)^3=64/125
For X=1, P=C(3,1)*(1/5)*(4/5)^2=3*16/125=48/125
For X=2, P=C(3,2)*(1/5)^2*(4/5)=3*4/125=12/125
For X=3, P=C(3,3)*(1/5)^3=1/125
So,
E[X^2]=1*48/125+2^2*(12/125)+3^2/125=0.84
E[X]=48/125+12/125*2+1/125*3=0.6
So,
E[X]^2=0.36
Answer:
141.5
Step-by-step explanation:
because, x=26.5 and y=4 and then, its just plugining it into the equation Im not sure about the x and y but, I took the test and got it right.
Answer:
to be honest I don't know either, but it's probably C
