Question

A multiple choice exam consists of 25 questions, each with 4
possible answers. Suppose that a student doesn't know the material
and simply guesses on each question.

Using the CDF command in MINITAB, answer the following
questions.

1) What is the probability that they get at least 13 questions
correct?

0-0.1

0.1-0.2

0.2-0.3

0.3-0.4

0.4-0.5

0.5-0.6

0.6-0.7

0.7-0.8

0.8-0.9

0.9-1.0

Answer #1

Where ranges are given as choices, pick the correct range. For
example, if you calculate a probability to be 0.27, you would pick
0.2-0.3. If your answer is 0.79, your choice would be 0.7-0.8, and
so on. The random variable Z has a standard normal
distribution.
1) Compute the probability that Z<0.6.
0-0.1
0.1-0.2
0.2-0.3
0.3-0.4
0.4-0.5
0.5-0.6
0.6-0.7
0.7-0.8
0.8-0.9
0.9-1
Tries 0/3
2) Compute the probability that Z<-1.8 .
0-0.1
0.1-0.2
0.2-0.3
0.3-0.4
0.4-0.5
0.5-0.6
0.6-0.7
0.7-0.8
0.8-0.9...

A multiple-choice exam has 80 questions, each with four possible
answers. If a student is just guessing at all the answers, the
probability that he or she gets at least 30
correct is closest to?
A.0.2
B.0.008
C.0.1
D.0.025

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

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

A quiz consists of 20 multiple-choice questions, each with 6
possible answers. For someone who makes random guesses for all of
the answers, find the probability of passing if the minimum passing
grade is 70 %.

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 student takes an exam containing 10 multiple choice questions.
The probability of choosing a correct answer by knowledgeable
guessing is 0.5. If the student makes knowledgeable guesses, what
is the probability that he will get between 4 and 8 (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

You have collected data that are exponentially
distributed: pdf f(x)= θexp(-xθ), x>0.
0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, and
1.0.
1) Determine the maximum likelihood estimation of
θ.
2) Implement the central limit theorem to obtain a 95% CI
for θ.

A student takes a 40-question multiple-choice exam but did not
study and randomly guesses each answer. Each question has three
possible choices for the answer. Find the probability that the
student guesses more than 75% of the questions correctly. (Round
your answer to three decimal places.)

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