Question

1. A question on a multiple-choice test has 10 questions each with 4 possible answers (a,b,c,d).

a. What is the probability that you guess all the answers to the 10 questions correctly (earn 100%)?

Answer #1

X: number of correct answers.

X~bin (n,p)

where, n= 10

p = 1/4 = 0.25

q= (1-p) = (1-0.25)= 0.75

the pmf of the distribution be:-

a)**.the
probability that i have guessed all the answers correctly
be:-**

*** if you have any doubt regarding the problem please write it
in the comment box.if you are satisfied please give me a
**LIKE** if possible..

On a Multiple Choice test, each question has six possible
answers. If you make a random guess on all 10 questions, what is
the probability that you are going to get 8 out of 10 correct?

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

On a certain statistics exam, there are 9 multiple choice
questions. Each question has 5 possible answers to choose from (and
only 1 correct answer). Suppose you didn’t study at all and are
planning on guessing the correct answer for each question.
Therefore, the probability of guessing a question correctly is
___________ . (Round to two decimals)
Let X = number of questions the student guesses
correctly
(Round all answers to four decimals)
a) What’s the probability you
guess at...

To screen prospective employees, a company gives a 10-question
multiple-choice test. Each question has 4 possible answers, of
which 1 is correct. The probability of answering a question
correctly by guessing is 0.25. Round each final answer to 4 decimal
places (but intermediate values should have more decimal places).
Find the probability of answering, by chance:
(a) Exactly 3 questions correctly.
(b) No questions correctly.
(c) At least 8 questions correctly.
(d) No more than 7 questions correctly.

In a statistics class, Maya takes a multiple-choice quiz. There
are 10 questions. Each question has five possible answers. Maya
will pass the test if she studies so that she has a 75% chance of
answering each question correctly. Let x be the number of of
correct answers. (Round probabilities to 4 decimal places)
a. Define the Random Variable, x ~
b. What is the PDF formula?
c. Find the probability that Maya answers exactly 4 of the
questions correctly?...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 65% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a)
A student must answer 43 or more questions correctly to obtain a
grade of A. What percentage of the students who have done their
homework and attended lectures will obtain a grade of A on this
multiple-choice examination?...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 75% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a) A student must answer 43 or more questions correctly to
obtain a grade of A. What percentage of the students who have done
their homework and attended lectures will obtain a grade of A on
this multiple-choice examination?...

Consider a multiple-choice examination with 50 questions. Each
question has four possible answers. Assume that a student who has
done the homework and attended lectures has a 65% chance of
answering any question correctly. (Round your answers to two
decimal places.)
(a)
A student must answer 44 or more questions correctly to obtain a
grade of A. What percentage of the students who have done their
homework and attended lectures will obtain a grade of A on this
multiple-choice examination?...

When taking a 10 question multiple choice test, where each
question has 4 possible answers, it would be unusual to get or more
questions correct by guessing alone.
whole number

1- A multiple choice test has 10 questions with 4 possible
answers, one of which is correct. Among all possible results, how
many will earn at least 70%?
2-How many 5-lists taken from[10]have no pair of adjacent
elements equal? Howmany such lists have at least one pair of equal
adjacent elements?

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 5 minutes ago

asked 35 minutes ago

asked 43 minutes ago

asked 49 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago