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In: Statistics and Probability
A multiple-choice test consists of 22 questions with possible answers of a, b, c, d, e,...
A multiple-choice test consists of 22 questions with possible answers of a, b, c, d, e, f. Estimate the probability that with random guessing, the number of correct answers is at least 11. the answer is not 0.0016
Solutions
orchestra answered 1 year agoRelated Solutions
A multiple-choice test consists of 22 questions with possible answers of a, b, c, d, e,...
A multiple-choice test consists of 22 questions with possible
answers of a, b, c, d, e, f. Estimate the probability that with
random guessing, the number of correct answers is at least 11. the
answer is not 0.0016 or 0.21
Multiple-choice questions each have five possible answers (a, b, c, d, e), one of which is correct
Multiple-choice questions each have five possible answers (a, b, c, d, e), one of which is correct. Assume that you guess the answers to three such questions.
a. Use the multiplication rule to find P(CCW), where C denotes a correct answer, and W denotes a wrong answer.
A multiple-choice examination consists of 85 questions, each having possible choices a, b, c, d, and...
A multiple-choice examination consists of
85
questions, each having possible choices a, b, c, d, and e.
Approximate the probability that a student will get at most
18
answers correct if she randomly guesses at each answer. (Note
that, if she randomly guesses at each answer, then the probability
that she gets any one answer correct is 0.2.) Use the normal
approximation to the binomial with a correction for continuity.
A multiple choice test consists of 60 questions. Each question has 4 possible answers of which...
A multiple choice test consists of 60 questions. Each
question has 4 possible answers of which one is correct. If all
answers are random guess, estimate the probability of getting at
least 20% correct.
Multiple-choice questions each have four possible answers left parenthesis a comma b comma c comma d...
Multiple-choice questions each have four possible answers left
parenthesis a comma b comma c comma d right parenthesis, one of
which is correct. Assume that you guess the answers to three such
questions. a. Use the multiplication rule to find P(CWW), where C
denotes a correct answer and W denotes a wrong answer.
P(CWW)equals nothing (Type an exact answer.) b. Beginning with
CWW, make a complete list of the different possible arrangements
of one correct answer and two wrong answers,...
Multiple-choice questions each have fourfour possible answers left parenthesis a comma b comma c comma d...
Multiple-choice questions each have
fourfour
possible answers
left parenthesis a comma b comma c comma d right parenthesis(a,
b, c, d),
one of which is correct. Assume that you guess the answers to
three such questions.
a. Use the multiplication rule to find
P(CWCCWC),
where C denotes a correct answer and W denotes a wrong
answer.
P(CWCCWC)equals=nothing
(Type an exact answer.)
Choose the correct answer below.
1.Multiple-choice questions each have four possible answers left parenthesis a comma b comma c comma d right parenthesis(a, b, c, d)
1.Multiple-choice questions each havefour possible answers left parenthesis a comma b comma c comma d
right parenthesis(a, b, c, d),one of which is correct. Assume that you guess the answers to
three such questions.Use the multiplication rule to find P(CWW), where C denotes a
correct answer and W denotes a wrong answerP(CWW)equals=2.Assume that random guesses are made for 3 multiple-choice
questions on a test with 5 choices for eachquestion, so that there
are N equals=3 trials, each with probability of...
A standardized test consists of 100 multiple-choice questions. Each question has five possible answers, only one...
A standardized test consists of 100 multiple-choice questions.
Each question has five possible answers, only one of which is
correct. Four points are awarded for each correct answer. To
discourage guessing, one point is taken away for every answer that
is not correct (this includes answers that are missing).
The company that creates the test has to understand how well a
student could do just by random guessing. Suppose a student answers
each question by picking one of the five...
A quiz consists of 20 multiple choice questions, each with five possible answers, only one of...
A quiz consists of 20 multiple choice questions, each with five
possible answers, only one of which is correct. If a student
guesses on each question, what is the mean and standard deviation
of the number of correct answers? Round to the nearest
thousandth.
______________________________________________________________
A. The mean is 10. The standard deviation is 3.162.
B.The mean is 4. The standard deviation is 1.789.
C.The mean is 10. The standard deviation is 1.789.
D.The mean is 4. The standard deviation...
On a math test there are 10 multiple-choice questions with 4 possible answers and 15 truefalse...
On a math test there are 10 multiple-choice questions with 4
possible answers and 15 truefalse questions. In how many possible
ways can the 25 questions be answered?
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