Assume that random guesses are made for seven seven multiple choice questions on an SAT test, so that there are n equals = 7 7 trials, each with probability of success (correct) given by p equals = 0.65 0.65. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4 4.
This is a direct application of Binomial distribution with parameter n = 7 and p = 0.65
Let X be Binomial random variable.
X ~ Binomial (n = 7, p = 0.65)
We want to find, P(X < 4)
Using Excel we find this probability as follows:
P(X < 4)
= P(X ≤ 3)
= BINOMDIST (3, 7, 0.65, 1)
= 0.1998
=> P(X < 4) = 0.1998
Therefore, required probability is 0.1998
Assume that random guesses are made for seven seven multiple choice questions on an SAT test,...
assume that random guesses are made for nine multiple choice questions on an SAT test, do that there are n=9 trials, each with probability of success (correct) given by p= 0.65. 5.2.17-T Question Help Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success (correct) given by p=0.65. Find the indicated probability for the number of correct answers Find the probability that the number...
Assume that random guesses are made for six multiple choice questions on an SAT test, so that there are n equals 6 trials, each with probability of success (correct) given by p equals 0.25. 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 six multiple choice questions on an SAT test, so that there are n equals = 6 6 trials, each with probability of success (correct) given by p equals = 0.35 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 4.
Assume that random guesses are made for eight eight multiple choice questions on an SAT test, so that there are n equals = 8 trials, each with probability of success (correct) given by p equals = 0.2. 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) equals = ___ (Round to four decimal places as needed.)
Assume that random guesses are made for six multiple choice questions on an SAT test, so that there are n equals 6 trials, each with probability of success (correct) given by p equals 0.45. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. Upper P left parenthesis Upper X less than 4 right parenthesisequals nothing (Round to four decimal places as needed.) P(X<4)= ?
5.2.17-T Question Help 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 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) =O (Round to four decimal places as needed.)
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 0.45. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4. PX<4)= (Round to four decimal places as needed.)
Assume that random guesses are made for eight multiple choice questions on an SAT test, so that there are n = 8 trails, each with probability of sucsess (correct) given by p = 0.65 . 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=0.4. 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)= ________ (round to four decimal places)
Assume that random guesses are made for nine multiple choice questions on an SAT test, so that there are n=9 trials, each with probability of success correct) given by p=0.2. Find the indicated probability for the number of correct answers. Find the probability that the number x of correct answers is fewer than 4 (Round to four decimal places as needed.)P(X<4) = _______