If X follows Binomial distribution with E$($X$)=6$ and Var$($X$)=4\mathrm{.}2$ then p $=$

Question $2$Answer

a$.$

$0\mathrm{.}3$

b$.$

$0\mathrm{.}6$

c$.$

$0\mathrm{.}7$

d$.$

$0\mathrm{.}4$