Question

(c) Compute the sample correlation coefficient r for each of the following data sets and show that r is the same for both. (Use 3 decimal places.) (i) x 6 5 9 y 2 1 5 (ii) x 2 1 5 y 6 5 9 r (i) (ii)

Answer #1

correlation coefficient is same for both data

(c) Compute the sample correlation coefficient r for
each of the following data sets and show that r is the
same for both. (Use 3 decimal places.)
(i)
x
5
2
9
y
1
2
5
(ii)
x
1
2
5
y
5
2
9
r
(i)
(ii)

Compute the sample correlation coefficient r for each
of the following data sets and show that r is the same for
both. (Use 3 decimal places.)
(i)
x
3
4
9
y
3
3
5
(ii)
x
3
3
5
y
3
4
9
r
(i)
(ii)

Examine the computation formula for r, the sample
correlation coefficient.
(a) In the formula for r, if we exchange the symbols
x and y, do we get a different result or do we
get the same (equivalent) result? Explain your answer.
The result is different because the formula is dependent on the
symbols.The result is the same because the formula is dependent on
the symbols. The result is the same
because the formula is not dependent on the symbols.The result is...

Examine the computation formula for r, the sample
correlation coefficient.
(a) In the formula for r, if we exchange the symbols
x and y, do we get a different result or do we
get the same (equivalent) result? Explain your answer.
The result is the same because the formula is dependent on the
symbols.The result is different because the formula is not
dependent on the symbols. The result is
different because the formula is dependent on the symbols.The
result is the...

Calculate the correlation coefficient, r, for the data
below.
Calculate the correlation coefficient, r, for the data
below.
X= -10 -8 -1 -4 -6 -7 -5 -3 -2 -9
Y= -15 -13 4 -4 -7 -11 -6 -2 1 -13

Questions 6 to 10 are
based on the problem below:
Compute the Pearson
Correlation Coefficient, r, for the following data
X
Y
2
3
3
1
6
5
4
4
5
2
The Pearson
Correlation, r is

Determine the Pearson product-moment correlation coefficient for
the following data.
x
1
11
9
6
4
3
2
y
10
4
6
5
7
7
10
(Do not round the intermediate values. Round your
answer to 3 decimal places.)
Correlation coefficient, r =

Determine the Pearson product-moment correlation coefficient for
the following data.
x 1 11 9 6 4 3 2
y 10 4 5 5 7 7 8
(Do not round the intermediate values. Round your answer to 3
decimal places.)
Correlation coefficient, r =

Determine the Pearson product-moment correlation coefficient for
the following data.
x 1 10 9 7 5 3 2
y 8 4 6 5 7 7 8
(Do not round the intermediate values. Round your answer to 3
decimal places.)
Correlation coefficient, r =

Compute the Pearson Correlation coefficient for the following
data (SSx= 10, and SSy= 10 )
X
Y
2
3
3
1
6
5
4
4
5
2

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