Page |1
Stat 211 Final Exam 2025|Brand New
Actual Exam With 100% Verified Questions
And Correct Answers | Already Graded A+
The major curriculum of study for a randomly selected student is - Correct
answer-unranked categorical
The standard normal distribution is a normal distribution whose - Correct answer-
mean is 0 and the standard deviation is 1
If we increase the confidence level of a confidence interval, - Correct answer-the
width of the confidence interval increases
Twenty-three percent of college freshmen do not return to college for their
sophomore year of study. A random sample of 12 college freshmen is obtained.
Find the probability that exactly 4 of these 12 freshmen will not return to college
for their sophompre year of study. - Correct answer-.1712
, Page |2
Determine whether the following statement is True or False.
A binomial experiment must possess the property that P(Sucess) = P(Failure) on
each trial of the experiment. - Correct answer-false
On a multiple choice exam, there are five possible answers to each of 20
questions. Each question has only one correct answer. A student "A" has not
studied for the exam and must guess the answer for each question. (You may
assume that the guesses are independent of each other.)
The number of correct guesses that "A" can expect to obtain is - Correct answer-4
The average age of automobiles registered in West Virginia is 7 years old (or 84
months) and the standard deviation is 15 months. A random sample sample of 36
automobiles is selected.
What is the standard deviation of the distribution of x-bar's possible values? -
Correct answer-2.5 months
A random sample of 400 WVU students was obtained, in which 150 students
stated that they had used an illegal drug at least once. A 95 % confidence interval
on the binomial parameter p goes from 23.8 % to 42.2 %.
Stat 211 Final Exam 2025|Brand New
Actual Exam With 100% Verified Questions
And Correct Answers | Already Graded A+
The major curriculum of study for a randomly selected student is - Correct
answer-unranked categorical
The standard normal distribution is a normal distribution whose - Correct answer-
mean is 0 and the standard deviation is 1
If we increase the confidence level of a confidence interval, - Correct answer-the
width of the confidence interval increases
Twenty-three percent of college freshmen do not return to college for their
sophomore year of study. A random sample of 12 college freshmen is obtained.
Find the probability that exactly 4 of these 12 freshmen will not return to college
for their sophompre year of study. - Correct answer-.1712
, Page |2
Determine whether the following statement is True or False.
A binomial experiment must possess the property that P(Sucess) = P(Failure) on
each trial of the experiment. - Correct answer-false
On a multiple choice exam, there are five possible answers to each of 20
questions. Each question has only one correct answer. A student "A" has not
studied for the exam and must guess the answer for each question. (You may
assume that the guesses are independent of each other.)
The number of correct guesses that "A" can expect to obtain is - Correct answer-4
The average age of automobiles registered in West Virginia is 7 years old (or 84
months) and the standard deviation is 15 months. A random sample sample of 36
automobiles is selected.
What is the standard deviation of the distribution of x-bar's possible values? -
Correct answer-2.5 months
A random sample of 400 WVU students was obtained, in which 150 students
stated that they had used an illegal drug at least once. A 95 % confidence interval
on the binomial parameter p goes from 23.8 % to 42.2 %.
