BUAL 2600 Exam 3 Questions And Answers
A study found that 65% of MBA students admit to cheating. A
business school dean surveys all the students in the graduating
class and gets responses in which cheating was admitted by 330 of
550 students. Is this a Bernoulli trial or not? -
correct answer ✅Bernoulli
College students are a major target for advertisements for credit
cards. At a university, 91% of students surveyed said that they
opened a new credit card account within the past year. If that
percentage is accurate, how many students would you expect to
survey before finding one who had not opened a new account in
the past year? -
correct answer ✅Bernoulli
At the airport entry sites, a computer is used to randomly decide
whether a traveler's baggage should be opened for inspection. The
chance of being selected is 14%. What is your chance of having
your baggage opened? Is this a Bernoulli trial or not? -
correct answer ✅Bernoulli
You have a bag of 20 marbles. Twelve of the marbles are green and
eight of the marbles are yellow. You draw three marbles out of the
bag without replacement. What is the probability that all three of
the marbles will be yellow? Is this a Bernoulli trial or not? -
correct answer ✅Not Bernoulli
, BUAL 2600 Exam 3 Questions And Answers
A city council of 6 Republicans and 14 Democrats picks a committee
of 3 people at random. What is the probability that they choose all
Republicans for the committee? Is this a Bernoulli trial or not? -
correct answer ✅Not Bernoulli
Suppose the probability of a dropped call is 0.02. What is the
probability that 2 out of the next 20 calls placed on a cell phone will
be dropped? What model would you use to find the probability? -
correct answer ✅Binomial
Suppose the technical support staff for an Internet service provider
receives an average of 12 calls per hour. Assuming that these calls
are independent of each other, what is the probability of 15 calls in
a given hour? What model would you use to find the probability? -
correct answer ✅Poisson
At many airports, a traveler entering the U.S. is sent randomly to
one of several stations where her passport and visa are checked. If
each of the 22 stations is equally likely, what is the probability that
a traveler will be sent to Station 2? What model would you use to
find the probability? -
correct answer ✅Uniform
A study found that 65% of MBA students admit to cheating. A
business school dean surveys all the students in the graduating
class and gets responses in which cheating was admitted by 330 of
550 students. Is this a Bernoulli trial or not? -
correct answer ✅Bernoulli
College students are a major target for advertisements for credit
cards. At a university, 91% of students surveyed said that they
opened a new credit card account within the past year. If that
percentage is accurate, how many students would you expect to
survey before finding one who had not opened a new account in
the past year? -
correct answer ✅Bernoulli
At the airport entry sites, a computer is used to randomly decide
whether a traveler's baggage should be opened for inspection. The
chance of being selected is 14%. What is your chance of having
your baggage opened? Is this a Bernoulli trial or not? -
correct answer ✅Bernoulli
You have a bag of 20 marbles. Twelve of the marbles are green and
eight of the marbles are yellow. You draw three marbles out of the
bag without replacement. What is the probability that all three of
the marbles will be yellow? Is this a Bernoulli trial or not? -
correct answer ✅Not Bernoulli
, BUAL 2600 Exam 3 Questions And Answers
A city council of 6 Republicans and 14 Democrats picks a committee
of 3 people at random. What is the probability that they choose all
Republicans for the committee? Is this a Bernoulli trial or not? -
correct answer ✅Not Bernoulli
Suppose the probability of a dropped call is 0.02. What is the
probability that 2 out of the next 20 calls placed on a cell phone will
be dropped? What model would you use to find the probability? -
correct answer ✅Binomial
Suppose the technical support staff for an Internet service provider
receives an average of 12 calls per hour. Assuming that these calls
are independent of each other, what is the probability of 15 calls in
a given hour? What model would you use to find the probability? -
correct answer ✅Poisson
At many airports, a traveler entering the U.S. is sent randomly to
one of several stations where her passport and visa are checked. If
each of the 22 stations is equally likely, what is the probability that
a traveler will be sent to Station 2? What model would you use to
find the probability? -
correct answer ✅Uniform
