Answer:
The correct response will be "0.01913".
Step-by-step explanation:
According to the question,
p - P(70 years or older)
= 0.18
n = 4
X = no. of individuals who are older than 70 years
Now,
∴ [tex]P(X=r)=n_C_r \ p^r(1-p)^{n-r}[/tex]
∴ [tex]P(X=3)=4_C_3(0.18)^3(1-0.18)^{4-3}[/tex]
[tex]=4\times (0.18)^3(0.82)^1[/tex]
[tex]=0.01913[/tex]
