A manager is keen to investigate about the smoking status in his company. he believes that 40% of his employees smoke. the manager survey 25 employs...

A manager is keen to investigate about the smoking status in his company. he believes that 40% of his employees smoke. the manager survey 25 employs randomly.

a)what's the probability that 8 or more employees were smoker? use 4 decimal number.

b)what's the probability that more than 8 employees were smoker? use 4 decimal number.