suppose the porportion X of surface area in a randomly selected quadrate that is covered by a certain plant has a standard beta distribution with α= 5 and β = 2.
a) Compute E(x) and V (x)
b) Compute P( x <= 0.2)
c) Compute p (0.2 <= X <=0.4)
d) What is the expected proportion of the sampling region not covered by the plant