Question

A
quiz contains 4 questions each with four different choices, one of
which is the correct answer. If someone randomly guesses the answer
to each question, what is the probability that they got all the
answers correct?

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)

A quiz for a Psychology class consists of 5 questions. The
questions are multiple-choice with 4 possible answers each, with
only one correct answer. A student randomly guesses on all 5
questions.
create a probability distribution for the number of correct
answers
what is the probability that the student will pass with a 60%
or better
what is the probability that the student will answer less than
4 correct

A multiple-choice test consists of eight questions, each of
which has four choices. Each question has exactly one correct
answer.
William guesses randomly at each answer. What is the probability
that he gets six or fewer questions correct? (Round your answer to
four decimal places.)

Round to 4 decimals please
A quiz has 12 multiple choice questions. Each question has 4
answer choices. If a student takes the quiz and randomly guesses on
every question..
Question 1 Find the probability the student gets between 1 and
6, exclusive, questions correct?
Question 2 Find the probability the student gets more than 8
questions correct?

A quiz consists of 15 multiple-choice questions. Each question
has 5 choices, with exactly one correct choice. A student, totally
unprepared for the quiz, guesses on each of the 15 questions. a.
How many questions should the student expect to answer correctly?
b. What is the standard deviation of the number of questions
answered correctly? c. If at least 7 questions must be answered
correctly to pass the quiz, what is the chance the student
passes?

A student takes a 19 question multiple choice quiz with 4
choices for each question. If the student guesses at random on each
question, what is the probability that the student gets more than 2
questions correct?

A short statistics quiz consists of two multiple choice
questions. Each question had four possible answer choices (A, B, C,
and D).
a. Make a list of the possible answer keys for the quiz or make
a tree diagram for them.
b. How many possible answer keys are there?
c. If a student guesses at random for both questions, what is
the probability they get both questions right?
d. What is the probability that C was not the correct answer...

A quiz consists of 100 multiple choice questions. Each question
has 4 possible answers (A-D) and only one answer is correct. If the
student guesses the answer to the questions, then what is the
probability earn a grade of 70% or higher? Show how to on Ti-84
Calculator

A
test has 5 multiple choice questions with 4 choices with one
correct answer each. if we randomly guess on each of the 5
questions, whatvis the probability that you get at least 1 question
correct?

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

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