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LiRa [457]
2 years ago
12

What is the best estimate of the correlation coefficient for the variables in the scatter plot

Mathematics
2 answers:
RUDIKE [14]2 years ago
5 0

Answer: -0.99

Step-by-step explanation:

From the given picture, it can be seen that there is a strong negative correlation between the variables.

i.e. the value of correlation coefficient must be negative.

The value of strong correlation coefficient r, lies between the absolute value of 0.75 to 1.

From all the given options -0.99 has the nearest value to the absolute value of 1.

Therefore, the  best estimate of the correlation coefficient for the variables in the scatter plot = -0.99

AVprozaik [17]2 years ago
3 0
I believe this would be -.99. Correlation typically goes from -1 to 1 with 0 being no correlation whatsoever. Since this has such a strong negative slope, it would need to be as close to -1 as possible. 
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A population of size 320 has a proportion equal to .60 for the characteristic of interest. What are the mean and the standard de
tiny-mole [99]

Answer:

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Step-by-step explanation:

Given population has a size of 320.

The proportion of population = 0.6

The mean of population, p = 0.6

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Therefore \hat{q}  = 1 - \hat{p} = 1 - 0.6  = 0.4

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6 0
3 years ago
The cost C (in dollars) for the care and maintenance of a horse and carriage is C=15x+2000 where x is the number of rides.
MissTica

Answer: 100 rides are needed to break even.


Step-by-step explanation:

We have given the cost function

C(x)=15x+2000 where x is the number of rides.

And rides cost 35$

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i.e.R(x)=35 x , where x is the number of rides.

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6 0
3 years ago
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Now, find another segment that also has a length of 6.

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So, the segment congruent to AC is B. BE . 
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3 years ago
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