Question

by picking a natural number randomly upto 100 ,find the probability of a number being a perfect cube

Answer 1

The probability of a number being a perfect cube is 4/ 100 .

Answer 2

Perfect cubes between 1 and 100 are-
1,8,27,64
so there are 4 perfect cubes b/w 1-100
let A be the event that the chosen no. is a perfect cube.
so P(A)= no. of favourable events/ total no. of events
             =4/100
              =0.04 answer