Question

number 10 I dont know where to begin with this

Answer 1

Given,

The model of the disease is,

$H(t)=\frac{0.95}{1+350e^{-0.125x}}$

For percentage multiplying with 100 then,

$H(t)=\frac{0.95}{1+350e^{-0.125x}}\times100$

The graph of the model is,

So, from the it is clearly seen that at age of 48 the CHD is 50%.

Hence, at age 48 the likelihood of CHDequals 50%.