Assume that random guesses are made for seven multiple choice questions on an SAT​ test, so that there are n=7 trials, each with probability of success​ (correct) given by p=0.25 Find the probability...

Assume that random guesses are made for seven multiple choice questions on an SAT​ test, so that there are n=7 trials, each with probability of success​ (correct) given by p=0.25
Find the probability that the number x of correct answers is fewer than