Question

A die is tossed thrice. Find the probability of getting an odd number at least once.

Answer 1

P(atleast one odd) = 1 - P(all even)
= 1 - p(even 1st) p(even 2nd)p(even 3rd)`
`= 1 - (3/6)(3/6)(3/6)`
`=1- (1/2)^3`
`= 1-1/8 = 7/8`
answer