Question

At Denver International Airport, 86% of recent flights have arrived on time. A sample of 10 flights is studied. Round the probabilities to four decimal places.

(a) Find the probability that all 10 of the flights were on time.

(b) Find the probability that exactly 8 of the flights were on time.

(c) Find the probability that 8 or more of the flights were on time.

(d) Would it be unusual for 9 or more of the flights to be on time?

It ▼(Choose one) be unusual for 9 or more of the flights to be on time since the probability is _. . |

Answer #1

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Your flight has been delayed: At Denver International Airport,
87% of recent flights have arrived on time. A sample of 12 flights
is studied. Round the probabilities to four decimal places.
(a) Find the probability that all 12 of the flights were on
time.
(b) Find the probability that exactly 10 of the flights were on
time.
(c) Find the probability that 10 or more of the flights were on
time.
(d) Would it be unusual for 11 or more...

your flight has been delayed. at Philadelphia international
airport, 80% of recent flights have arrived on time. a sample of 14
flights is studied. a) find the probability that exactly 14 of the
flights were on time. b) find the probability that at least 12 of
the flights were on time.c) find the probability that at most 10 of
the flights were on time. d) would it be unusual for less than 9 of
the flights to be on time.e)...

At an airport, 75% of
recent flights have arrived on time. A sample of 11 flights is
studied. Find the probability that no more than 4 of them were on
time.
Round your answer in 4
decimal places

At an airport, 75% of
recent flights have arrived on time. A sample of 11 flights is
studied. Find the probability that no more than 4 of them were on
time.
Round your answer in 4
decimal places

At a major International Airport, 0.35 of the flights arrive
on time. A sample of 10 flights is studied. What is the probability
that more than 3 of them arrived on time?
Write only a number as your answer. Round to 2 decimal places
(for example 0.24). Do not write as a percentage.

A student takes a multiple-choice test that has 40 questions.
Each question has 5 choices. The
student did not study for the test and decides to randomly guess at
each question. (Hint: The
probability of guessing correctly is 0.2.) Round the probability to
four decimal places.
a) Find the probability the student gets exactly 10 problems
correct._______________
(Show work.)
b) Calculate the mean.____________
c) Calculate the standard deviation._____________
Your flight has been delayed. At Philadelphia International
Airport, 90% of recent...

There are 10 flights daily from Bermuda via American Airlines
into Newark International Airport. Suppose the
probability that any one of the flights arriving late is
0.10.
What is the probability that more than 3 flights will be late
today?
What is the probability that fewer than two flights will arrive
late today?
What is the probability that 0 flights will arrive late
today?

There are 10 flights daily from Bermuda via American Airlines
into Newark International Airport. Suppose the probability that any
one of the flights arriving late is 0.10.
a. What is the probability that 0 flights will arrive late
today?
b. What is the probability that fewer than two flights will
arrive late today?
c. What is the probability that more than 3 flights will be late
today?
d. How many flights can be expected late on any given day?

Google it: According to a recent report, 68% of Internet
searches in a particular month used the Google search engine.
Assume that a sample of 22 searches is studied. Round the answers
to four decimal places.
(a) What is the probability that exactly 18 of them used
Google?
(b) What is the probability that 13 or fewer used Google?
(c) What is the probability that more than 18 of them used
Google?
(d) Would it be unusual if fewer than...

American Airlines' flights from Boston to Atlanta are on time
70% of the time. Suppose 8 flights are randomly selected, and the
number on-time flights is recorded. Use the binomial distribution
to compute the following.
(a) The probability that exactly 2 flights are on
time is
(b) The probability that more than 7 flights are
on time is
(c) The probability that at most 4 flights are on
time is
Round all answers to at least 4 decimal places.

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