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?

This problem can be solved using the binomial distribution B (n, p, x) where

n = number of trial

p = probability of success

x = number of success

The question asking for 30 success out of 60 trial with 45% success rate, so the expression would be: B (60, 45, 30)