Question

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.

Answer #1

TOPIC:Binomial distribution.

A multiple-choice test consists of 7 questions. Each question
has answer choices of a, b, c, and d, and only one of the choices
is correct. If a student randomly guesses on each question, what is
the probability that he gets fewer than 2 of them 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.)

A student takes a containing 19 multiple-choice questions. Each
question has 5 choices. If the student guesses, what is the
probability that he will get between 3 and 5 (both inclusive)
questions right? Round your answer to four decimal places.

A student takes an exam containing 19 multiple choice questions.
Each question has 5 choices. If the student guesses, what is the
probability that he will get less than 7 but more than 5 questions
right? Round your answer to four decimal places

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 multiple-choice test that has 10 questions.
Each question has five choices. The student guesses randomly at
each answer. 1. Find P(2) 2. P (more than 3)

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

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...

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?

MC1701: A test consists of 10 multiple choice questions, each
with five possible answers, one of which is correct. To pass, a
student must get at least 6 correct on the test. If a student
randomly guesses at every question, what is the probability that
the student fails the test?
a.
2.6%
b.
20%
c.
80%
d.
97.4%
e.
99.4%
f.
None of these

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