Question

I need help with my question. It is very confusing

Answer 1

(a)

$\mu=10,\sigma=0.8$

The distribution of X is;

X~N(10,0.8)

(b)

[tex]\begin{gathered} x=11 \\ z=\frac{11-10}{0.8} \\ z=\frac{1}{0.8} \\ z=1.25 \\ x=12.1 \\ z=\frac{12.1-10}{0.8} \\ z=\frac{2.1}{0.8} \\ z=2.625 \\ P(1.25