Answer
a)0.65
b)0.015
c)Very unlikely.
Work Step by Step
a)Here we can use the complement rule: P(not blue)=1-P(blue)=1-35%=1-0.35=0.65.
b) The probability of having blue eyes are independent, hence we can us the multiplication rule: P(all eyes are blue)=$0.35^4=0.015.$
c) By using the result of b), it is very unlikely to select 4 people randomly and all of their eyes to be blue.
