Question
In: Statistics and Probability
In a university 20% students belong to the school of business (B), 15% to the school...
In a university 20% students belong to the school of business
(B), 15% to the school of
engineering(E) and 30% belong to the school of social sciences(S).
Of the school of
business students 35% have taken a statistics course, of the school
of engineering
students 45% have taken a statistics course, and of the school of
social sciences
students, 20% have taken a statistics course. Between the three
schools, what fraction
of students have taken a statistics course (Q)? If a randomly
selected student is found
to have taken a statistics course, what is the chance that the
student belongs to the
school of business?
Solutions
orchestra answered 2 years agoRelated Solutions
At a Midwestern University the 450 students in the Business School were classified according to their...
At a Midwestern University the 450 students in the
Business School were classified according to their major within the
business school and their gender. The results are:
Female
Male
Total
Accounting
68
56
124
Administration
91
40
131
Economics
5
6
11
Finance
61
59
120
Other
39
25
64
Total
264
186
450
Complete a table for marginal distribution.
Complete a table for Conditional distribution
At a Midwestern University the 386 students in the Business School were classified according to their...
At a Midwestern University the 386 students in the Business
School were classified according to their major within the business
school and their gender. The results follow.
Female
Male
Accounting
68
56
124
Administration
91
40
131
Economics
5
6
11
Finance
61
59
120
225
161
386
Find the probability that the selected student is a finance
major and a male.
b. Find the probability that the selected student is an
administration major or a finance major.
c. Find...
There are 68% of students drive to school in one university. Here is a sample of...
There are 68% of students drive to school in one
university. Here is a sample of 20 students.
1) What is the probability that only 12 students drive to
school?
2)What is the probability that no more than 15 students drive to
school?
3) What is the probability that no more than 10 students drive
to school?
4) What is the mean and standard deviation?
5) What is the percentage falling with 1 standard deviation?
Does it satisfy the Empirical...
A total of 23 Gossett High School students were admitted to State University. Of those students,...
A total of 23 Gossett High School students were admitted to
State University. Of those students, 7 were offered athletic
scholarships. The school’s guidance counselor looked at each
group’s summary statistics of their composite ACT scores, wondering
if there was a difference between the groups (those who were not
offered scholarships and those who were). The statistics for the 16
students who were not offered scholarships are x̅ = 24.7, s = 2.8
and for the 7 who were, x̅...
Suppose we know that at a University XYZ that 15% of students receive an A in...
Suppose we know that at a University XYZ that 15% of students
receive an A in their introductory statistics class, 20% receive a
B, 30% receive a C, 10% receive a D, and the rest receive an F. For
comparison, a sample of 260 students at University ABC is taken and
20% received an A, 25% received a B, 25% received a C, 10% received
a D, and the remaining students failed the class. When testing (at
the 5% level...
8. At a university with 1,000 business majors, there are 200 business students enrolled in an...
8. At a university with 1,000 business majors, there are 200
business students enrolled in an introductory Accounting course. Of
these 200 students, 50 are also enrolled in an introductory
Statistics course. There are an additional 250 business students
enrolled in Statistics but not enrolled in Accounting. If a
business student is selected at random, what is the probability
that the student is either enrolled in Accounting or Statistics or
in both courses?
A professor in the school of business at a certain university wants to investigate the claim...
A professor in the
school of business at a certain university wants to investigate the
claim that the prices of new textbooks in the campus store are
higher than a competing national online bookstore by more than 50
cents. The professor randomly chooses required texts for 12
business school courses. Use α=0.05α=0.05. The data is given in the
table below.
Book
Campus Store
Online Store
A
108.51
109.42
B
200.06
201.93
C
223.52
226.39
D
186.12
183.9
E
121.65
122.13...
A professor in the school of business at a certain university wants to investigate the claim...
A professor in the
school of business at a certain university wants to investigate the
claim that the prices of new textbooks in the campus store are
higher than a competing national online bookstore. The professor
randomly chooses required texts for 12 business school courses. The
data is given in the table below.
Book Number
Campus Store
Online Store
Book 1
125.45
124.27
Book 2
88.37
86.21
Book 3
230.98
229.6
Book 4
151.8
153.02
Book 5
236.44
237.4
Book...
A professor in the school of business at a certain university wants to investigate the claim...
A professor in the school of business at a certain university
wants to investigate the claim that the prices of new textbooks in
the campus store are higher than a competing national online
bookstore by more than 50 cents. The professor randomly chooses
required texts for 12 business school courses. Use
α=0.05
. The data is given in
the table below.
Book
Campus Store
Online Store
A
171.79
171.56
B
155.76
154.72
C
108.11
106.57
D
161.67
156.68
E
151.47...
In a large university, 20% of the students are male. If a random sample of twenty...
In a large university, 20% of the
students are male. If a random sample of twenty two students is
selected
a.
What is the probability that the sample contains exactly twelve
male students?
b.
What is the probability that the sample will contain no male
students?
c.
What is the probability that the sample will contain exactly
twenty female students?
d.
What is the probability that the sample will contain more than
nine male students?
e.
What is the probability...
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