Question

250 balls are numbered from 1 to 250 and placed in a box.A ball is picked random What is the probability of picking a ball with.

a.the number 1
b. number less then 300

Answer 1

a: There's only one ball numbered with the number 1, so you have a probability of 1/250 to pick it.

b: All 250 balls have a number less than 300, so it doesn't matter which ball you pick: the condition will surely be met. You have a probability of 250/250=1 to pick a ball with a number less than 300.