Question
In: Advanced Math
Answer the following questions. (a) What is the implication of a correlation matric not being positive-semidefinite?...
Answer the following questions.
(a) What is the implication of a correlation matric not being
positive-semidefinite?
(b) Why are the diagonal elements of a correlation matrix always
1?
(c) Making small changes to a positive-semidefinite matrix with 100
variables will have no effect on the matrix. Explain this
statement?
Solutions
Colby Messinger answered 2 years agoRelated Solutions
Answer the following questions. (a) What is the implication of a correlation matric not being positive-semidefinite?...
Answer the following questions.
(a) What is the implication of a correlation matric not being
positive-semidefinite?
(b) Why are the diagonal elements of a correlation matrix always
1?
(c) Making small changes to a positive-semidefinite matrix with 100
variables will have no effect on the matrix. Explain this
statement
Answer the following questions. (5) (a) What is the implication of a correlation matric not being...
Answer the following questions. (5)
(a) What is the implication of a correlation matric not being
positive-semidefinite?
(b) Why are the diagonal elements of a correlation matrix always
1?
(c) Making small changes to a positive-semidefinite matrix with
100 variables will have no effect on the matrix. Explain this
statement?
a. Draw a scatter plot. Is this a positive or negative correlation? Explain what a positive correlation and negative correlation are. b.Compute the pearson correlation.
For the following scores,
x
y
0
4
2
9
1
6
1
9
a. Draw a scatter plot. Is this a positive or negative correlation? Explain what a positive correlation and negative correlation are. b.Compute the pearson correlation.
Answer the following questions in your answer: 1. What specific metrics are being used? 2. What...
Answer the following questions in your answer:
1. What specific metrics are being used?
2. What value is the company getting from using this data?
3. What other metrics would you suggest they look at?
4. Are there any ethical concerns with what data they are using
or how they are using it?
The article:
Why Fashion Stores Shouldn't Join Amazon's Data
Behemoth
Providing Amazon with more customer data will only make
the e-commerce giant an even stronger opponent. Instead,...
Use your understanding of correlation coefficient, r, to answer the following questions. a) What values can...
Use your understanding of correlation coefficient, r, to answer
the following questions.
a) What values can r take?
b) What values of r indicate a strong relationship between the
variables?
c) If two variables, X and Y, have a correlation coefficient of
r = .5 what can you say about their relationship?
d) If two variables, X and Y, have a correlation coefficient of
r = -.02 what can you say about their relationship?
Find a grocery product that is being featured as being new and answer the following questions....
Find a grocery product that is being featured as being
new and answer the following questions. Please number from
1 to 10 at the beginning of each of your answers. For
example, 1. The product’s name is Mr. Ted’s brand Soda
Crackers. Those not numbered will not be
counted.
Note: To aid in finding a new product: Look for
displays, shelf signage, the word NEW on the package, or recall a
recent advertisement about the new product. Do NOT submit a...
The implication of resources being mobile domestically is that:
The implication of resources being mobile domestically is
that:A) there is often unemployment.B) capital and land are often not suited for use in other
industries.C) labor is paid the same wage and capital receives the same
rental price in all domestic industries.D) they lose the chance to become guest workers in other
nations.
Using the mtcars dataset, answer the following questions: Fill in the following table: Variable Correlation with...
Using the mtcars dataset, answer the following questions:
Fill in the following table:
Variable
Correlation with mpg
cyl
-0.85216
disp
-0.84755
hp
-0.77617
drat
0.681172
wt
-0.86766
qsec
0.418684
vs
0.664039
am
0.599832
gear
0.480285
carb
-0.55093
mpg
cyl
disp
hp
drat
wt
qsec
vs
am
gear
carb
Mazda RX4
21
6
160
110
3.9
2.62
16.46
0
1
4
4
Mazda RX4 Wag
21
6
160
110
3.9
2.875
17.02
0
1
4
4
Datsun 710
22.8
4
108...
Answer the following questions: Describe the range of values for the correlation coefficient. Discuss the difference...
Answer the following questions:
Describe the range of values for the correlation
coefficient.
Discuss the difference between "r" and "p".
In your own words, what does it mean to say "correlation does
not imply causation?"
a. what are some implication for gene x being presented on a plasmidvs the chromosome of...
a. what are some implication for gene x being presented on a
plasmidvs the chromosome of an organism?
b. consider this same question in the contexof an organism being
presented in its native habitat vs a new habitat?
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