Answer:
a) The correlation coeffcient is given by:
And replacing we got:

b) For this case we can conclude that we have a strong, negative linear association between the two stock prices.
Explanation:
Part a
For this case we have the following info:
represent the sample deviation for the variable X
represent the sample deviation for the variable Y
represent the covariance between the variables X and Y
The correlation coeffcient is given by:
And replacing we got:

Part b
Describe the relationship between prices of these two stocks.
For this case we can conclude that we have a strong, negative linear association between the two stock prices.
Answer:
DDDD. =DAVERAGE(Earnings,2,A2:C4)
Explanation:
Took the test
It is a true statement that the Keynes law best applies to short time horizons which see fluctuations in total demand.
<h3>What is the
Keynes law?</h3>
The Keynesian economic model is developed to adovate an increased government expenditures (spending) and lowering of taxes for stimulation of demand for getting an economy out of the depression.
The law of Keynesian model states that demand creates its own supply and any changes in aggregate demand will cause changes in real GDP and employment.
In conclusion, the statement that Keynes law best applies to short time horizons which see fluctuations in total demand is true.
Read more about Keynes
<em>brainly.com/question/26987729</em>
Answer:
The number and characteristics of sellers and buyers is called market structure.
Explanation:
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