Question

I) 3 questions have four multiple choices a, b, c and d

II) only one question is true and false

Let *X*

denotes the number of correct answers for part (I) and
*Y* denotes the number of correct answers in true/false
part. Find the joint probability distribution function
*f**X*,*Y*(*x*,*y*)

Answer #1

There is a quiz which contains 4 questions as follow:
I) 3 questions have four multiple choices a, b, c and d
II) only one question is true and false
Let XX denotes the number of correct answers for part (I) and YY
denotes the number of correct answers in true/false part. Find the
joint probability distribution function fX,Y(x,y)

There is an exam which contains 4 questions as
follow:
I) 3 questions have four multiple choices a, b, c and
d
II) only one question is true and false
Let XX denotes the number of correct answers for part
(I) and YY denotes the number of correct answers in true/false
part. Find the joint probability distribution function fX,Y(x,y

There is an ex which contains 4 questions as follow:
I) 3 questions have four multiple choices a, b, c and d
II) only one question is true and false
Let \ (X \) denotes the number of correct answers for
part (I) and \ (Y \) denotes the number of correct
answers in true / false part. Find the joint probability
distribution function \ (f_X, _Y (x, y) \)

Let X denotes the number of correct answers for part (I) and Y
denotes the number of correct answers in true/false part. Find the
joint probability distribution function fX,Y(x,y)

A multiple choice test consisting of 10 questions. each question
has four choices. a,b,c, and d tell how you would find the
probability of guessing at least one correct answer, without the
use of binomial probability formula. what rule would your use to
simplify your solution?

A multiple-choice test has four questions, each with five
choices for the answer. Only one of the choices is correct. You
randomly guess the answer to each question. What is the probability
that you answered at least one questions correctly?
A. 0.5904
B.0.1808
C.0.216
D. 0.8192

Section II – During finals week, some instructors tend to use
multiple-choice (A, B, C, or D) and true/false
questions on the exam. Let us continue working with multiple-choice
problems, but let us say instead that the instructor has
eight (8) multiple-choice problems with
*four possible choices* for each problem. Use this
information for all problems on this page!
What are the four requirements for an experiment to be a
binomial experiment?
Do the eight multiple-choice questions satisfy those
requirements?...

Multiple-choice questions each have four 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(WWCWWC),where C
denotes a correct answer and W denotes a wrong answer.
P(WWCWWC)equals ???
(Type an exact answer.

A multiple-choice test consists of 10 questions. Each question
has answer choices of a, b, c,
d, and e, and only one of the choices is correct.
If a student randomly guesses on each question, what is the
probability that he gets at most 1 of them correct?
Carry your intermediate computations to at least four decimal
places, and round your answer to at least two decimal places.

A multiple-choice test consists of 20 items, each with four
choices. A student is able to eliminate one of the choices on each
question as incorrect and chooses randomly from the remaining three
choices. A passing grade is 12 items or more correct. Let X be the
number of questions the student answers correctly.
a) What is the pdf of X?
b) What is the probability that the student passes?
c)What is the E(X) & Var(X)?
d)What is the m.g.f...

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