Fred is a weightlifter who can lift 800 pounds on 45% of his attempts. Which of these expressions represents the probability Fred will make 30 lifts out of 60?

N(60, .45, 30)

B(60, .45, 30)

B(30, .45, 60)

B(30, .800, 60)

N(30, .800, 60)

Question

Fred is a weightlifter who can lift 800 pounds on 45% of his attempts. Which of these expressions represents the probability Fred will make 30 lifts out of 60?

       N(60, .45, 30)

       B(60, .45, 30)

       B(30, .45, 60)

       B(30, .800, 60)

       N(30, .800, 60)

littlebird · Answer

A binomial distribution is written as B(n,p), where n is the number of trials and p is the probability of success on each trial. A specific probability is written as B(n,p,X), where X is the number of successes

theopenstudyowl · Answer

ty, I am just learning this, but my teacher of course never explains..