Question

for a binomial variate mean is 4 and 4P ( X=2) = 9P (X=3)

Answer 1

Answer:

this is example for this type questions

Step-by-step explanation:

X follows a binomial distribution with parameters n=6 and P. If 4P(x=4)=P(x=2),

then P=4P(x=4)=P(x=2)

4×

6

C

4

×(P

4

)×(1−P)

2

=

6

C

2

×(P

2

)×(1−P)

4

4×P

2

=(1−P)

2

(3P−1)(P+1)=0

P=

3

1