Question

In a binomial distribution n = 4 and if p(1)=p(2) . What is value of p

Answer 1

Answer:

P(X=3)=

4

C

3

p

3

(1−p)=4p

3

(1−p)

P(X=2)=

4

C

2

p

2

(1−p)

2

=6p

2

(1−p)

2

8p

3

(1−p)=18p

2

(1−p)

2

4p=9(1−p)

13p=9

p=

13

9