Question

2) A basketball player scores 70% of his shots on average. What is the probability that he scoresat least 18 successful shots tonight if he gets 20 shots?

Answer 1

It is a case of Binomial distribution because the probability of an event is fixed , there are fixed number of trails and there are two events only,

The two events are the basketball player scoring the point and not scoring the point

-0.70 too store, Brokatility that the basketball player scores = 0.70 (70%. in decimals = 70 o [*0 p=0.70 pt q = 1 ) q=1-p=1-0.70 930-307 probatility that the player doesn't n = Total number of shots=20 Bobability that he swores at teast 18 su compul shots Plz 18) 18, 19 or 20 successful plezie) = Plra 18) +P(8=19) +P(8=20) Pfr)= no pront p=0.70 Pirza) – 20,60.50)%0-3032 +24,76789%o 30 +20, (0.7070 40-3030-20 Pfx213) = 0-0355 shots. n=20 q=0.30