5.5

Solve the following problems by using the binomial formula.

1. If n = 4 and p = 0.10, find P(x = 3).

b.   If n = 7 and p = 0.80, find P(x = 4).

c.   If n = 10 and p = 0.60, find P(x ≥ 7).

d.   If n = 12 and p = 0.45, find P(5 ≤ x ≤ 7).

Answers:

a)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

b)