Question

- We have 56 people (students and non-students) who has blue as their favorite color out 192

Therefore;

=56/192

=0.29166667

What is the probability that of the 25 students in this class, more than 8 will have a favorite color of blue?

Answer #1

Probability

A color code personality test categorizes people into four
colors – Red (Power), Blue (Intimacy), Green (Peace), and Yellow
(Fun). In general, 25% of people are Red, 35% Blue, 20% Green, and
20% Yellow. An art class of 45 students is tested at a university
and 7 are found to be Red, 18 Blue, 9 Green, and 11 Yellow.
Can it be concluded that personality type has an impact on
students’ areas of interest and talents, such as artistic students...

4 students have the following grades (out of 100): 56, 78, 92,
43. We pick two random students from these 4.
A = Average grade of the two students
What is the expected value and the variance of A?

We want to figure out if lung cancer is related to
smoking or not. Suppose that we know 0.3 % of the people has lung
cancer and 85% of the people with lung cancer were a current or
previous smoker. Also we know that 25% of the people who do not
have lung cancer, smoke. With these information, answer the
following parts: (5 points each)
a) what is the probability of having lung cancer in
non-smokers?
b) What is the...

Suppose that 56% of all college students are female and that we
randomly select 15 college students. a) What is the probability
that exactly 8 of the students will be female? b) What is the
probability that 10 or more of the students will be female? c) What
is the mean number μ of females in such randomly selected groups of
15 students? d) What is the standard deviation σ of the number of
females in such randomly selected groups...

It has been found that 1 out of
every 10 people who visit a local store purchase cigarettes. If we
randomly select a sample of 13 visitors to the store, what is the
probability that:
a) No more than two of the visitors will
purchase cigarettes? Interpret your answer.
b) More than three of the visitors will
purchase cigarettes? Interpret your answer.

Suppose the proportion of all college students who have changed
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students is considered what is the probability that the proportion
of students who may change their major in the next 2 semesters is
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If we chose to conduct a test to determine of students who study
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a) On this example we will examine the probability a couple who
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b) Next we will look at the probability that they have more
than 3 boys.
c) Next we will look at the probability that they have more
than 4 boys.
d) Finally we will look at the probability that they have at
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Assume a .25 chance of having a boy

Every 5 out 8 people pass their driver's license tests on the
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1) After asking many people, I found out that 1 in every 9 have
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