Question

Anil is taking part in four competitions.if the probability of him winning competition is 0.3 .find the probability of him winning atleast one competition.

Answer 1

P(W)= 0.3

Atleast one = 1 - Winning All

=1-0.3

=0.7

Answer 2

Answer:

0.7599

Step-by-step explanation:

Probability at least won competition wins

= 1 - he wins no competition

His probability to lose in one competition

= 1 - 0.3 = 0.7

It's probability loosing 4 competition

= 0.7×0.7×0.7×0.7

so required probability

$= 1 - (0.7) {}^{4} = 1 - 0.2401 = 0.7599$