Assume that random guesses are made for eight multiple choice questions on an SAT​ test, so that there are n=8 ​trials, each with probability of success​ (correct) given by p=0.5. Find the indicated probability for the number of correct answers.   Find the probability that the number x of correct answers is fewer than 4.   P(X<4)=   ive been trying to figure this out for over an hour

Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 tirals, each with probability of success (correct) given by p=0.35. Find the indicated probability for the number of correct answers.  Find the probability that the number x of correct answers is fewer than 4.

Assume that random guesses are made for six multiple choice questions on an SAT test, so that there are n= 6 trials, each with probability of success (correct) given by p = 0.3. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. P(X < 4) =D (Round to four decimal places as needed.)

The police tested 550 people, to see if anyone would match the partial fingerprint at the crime scene. The probability of getting a false-positive result for a single person, was 0.3%. In the video: What did we find was the approximate percentage probability, that out of 550 people tested, there would be at least one false-positive result? Round to four digits past the decimal point, and include a percentage symbol in your answer (with no spaces).