The continuous random variable $Y$ has the distribution $N\left( \mu ,{{\sigma }^{2}} \right)$. It i

Question

The continuous random variable $Y$ has the distribution $N\left( \mu ,{{\sigma }^{2}} \right)$. It is known that $\mathrm{P}\left( Y[4]

Accepted Answer

$\mu =1.29a$ ($3$ s.f.)

N2013 P2 Q6