Question

Match these values of r with the accompanying scatterplots: -0.999, -1, -0.358, and 0.999

Answer #1

Calculate the correlation coefficient r, letting Row 1
represent the x-values and Row 2 the y-values. Then calculate it
again, letting Row 2 represent the x-values and Row 1 the
y-values. What effect does switching the variables have on r?
Row 1
12
21
38
48
54
66
76
Row 2
177
198
194
133
156
117
173
Calculate the correlation coefficient r, letting Row 1
represent the x-values and Row 2 the y-values.

what kind of organizations would match INFJ person values.

In the left column below are listed the r-values of various data
sets, each of which contains 100 points. Descriptions of those data
sets are shown in the right column. Match each r-value with the
description of the data set with which it is most likely
associated.
r=0.1
A.
Data shows a clear upward trend
r=0.6
B.
Data points lie quite close to a line with negative slope
r=0.9
C.
Data shows a very slight upward trend
r=−0.6
D.
Data...

A large value for the chi-square statistic indicates
the sample data (observed values) do not match the null
hypothesis. there is a good fit between the sample data (observed
values) and the null hypothesis. the
observed values from the sample data are consistently larger than
the expected values. the observed values from the sample data are
consistently smaller than the expected values.

Which of these rho values is plausible?
A. r = -1.01
B. r = 1.01
C. r = - 0.87
D. r = 1.96

Refer to the accompanying technology display. The probabilities
were obtained by entering the values of n equals 5 and p equals
0.764. In a clinical test of a drug, 76.4% of the subjects
treated with 10 mg of the drug experienced headaches. In each
case, assume that 5 subjects are randomly selected and treated with
10 mg of the drug. Find the probability that at least four of the
subjects experience headaches. Is it unusual to have fewer than
four...

I did a LAB today and my theoretical ph values didn't match with
the actual ph value.
the LAB was about serial dilution of 0.1M HCl. do you
know why...?

Using R, generate 10,000 random values of weibull (using alpha=
1, beta = 4) and plot the estimated pdf and cdf.
b) use the random values to find the probability that X is
between 0.2 and 0.8 and calculate and compare this to the
truth.
c) use the tandom values to estimate Q1, M, and Q3 and compare
these.

1a. Find any of the values a1, r, an, n, or sn that are missing
from the geometric sequence
r= 5/2, n=4, S4=1624
the value of a1 is?
b. find the sum of the first n terms of the indicated geometric
sequence with the given values
1/8 + 1/2 + 2 + (X) times (X) times (X)times + 32

A table of values is given for a function f(x, y) defined on R =
[1, 3] × [0, 4].
0
1
2
3
4
1.0
2
0
-3
-6
-5
1.5
3
1
-4
-5
-6
2.0
4
3
0
-5
-8
2.5
5
4
3
-1
-4
3.0
7
8
6
3
0
Estimate f(x, y) dA R using the Midpoint Rule with m = n = 2 and
estimate the double integral with m = n =...

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