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lozanna [386]
3 years ago
14

Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?

Mathematics
1 answer:
Kazeer [188]3 years ago
4 0
I think the correct answer would be -0.5. It would be the best estimate since looking at the graph the points tend to have a negative correlation where as Y increases the value of X decreases. However, the value of the correlation would be small since the points are very varied. Hope this helps.
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Drag and drop the reasons to correctly complete each box.
Stells [14]

Answer:

^{}wer here. Link below!

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Step-by-step explanation:

3 0
3 years ago
What is the end of your proof? (What are you proving?)
AnnyKZ [126]

Answer

with

Step-by-step explanation:

Statement      Reasons

1.∠1 ≅ 4             Given

2.∠1 = ∠2           Being Vertically opposite angles.

3.∠4 = ∠3          Being Vertically opposite angles.  

4.∠2 = 3             From Statement no 2 & 3, Transitive property.

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6 0
3 years ago
Suppose that the scores of a history test are normally distributed with a mean of 565 and a standard deviation of 113. a) What p
zvonat [6]

Answer:

15.39% of the scores are less than 450

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 565, \sigma = 113

What percentage of the scores are less than 450?

This is the pvalue of Z when X = 450. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{450 - 565}{113}

Z = -1.02

Z = -1.02 has a pvalue of 0.1539

15.39% of the scores are less than 450

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4 years ago
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3 years ago
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The display on a calculator screen is shown below.
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You formatted the equation wrong for the setting your calculus on i would recommend using a Ti-34
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3 years ago
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