Answer:
1. Co-variance= -1.2
2. correlation coefficient= -0.4404
3. There is weak negative relationship between x and y.
Explanation:
1.
Co-variance= Cov(x,y)= sum[(x-xbar)(y-ybar)]/n
xbar=sumx/n=32/5=6.4
ybar=sumy/n=35/5=7
x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
Cov(x,y)= sum[(x-xbar)(y-ybar)]/n=-6/5=-1.2
Cov(x,y)=-1.2
2.
correlation coefficient=r
x 7 8 5 3 9
x-xbar 0.6 1.6 -1.4 -3.4 2.6
y 7 5 9 7 7
y-ybar 0 -2 2 0 0
(x-xbar)(y-ybar) 0 -3.2 -2.8 0 0
(x-xbar)² 0.36 2.56 1.96 11.56 6.76
(y-ybar)² 0 4 4 0 0
r=-0.4404
3. Since the value of correlation coefficient is negative and less than 0.5 , so, we can say that there is weak negative relationship between x and y.
Answer:
Bipolar disorder
Explanation:
Lila likely meets the criteria for bipolar disorders. Lila had an episode of depression about four months ago, and bipolar disorder is a mental condition that leads to extreme mood swings; from a low depression (Lila faced this 4 months ago) to emotion highs (where she is energetic, elated and hyperactive). She has become so interested in savings and investing (another effect of manic depression).
The president has a role in the legislative process through Vetoing.
<h3>What does "veto" signify in law?</h3>
an individual or group's ability to forbid another from taking a certain action.
"Veto" often refers to a chief executive's ability to obstruct or complicate the passage of a legislative measure by refusing to sign it into law in a political setting.
<h3 /><h3>How does veto function?</h3>
The veto is the president's authority to reject a bill or joint resolution and halt its passage into law.
When a measure is enacted by Congress, the president has ten days (excluding Sundays) to sign it.
Learn more about vetoing:
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Answer:
The following are advantages of modern economic system
Explanation:
- Countries embrace modern economic system since it increases national productivity.
This is due to the fact that the free trade system make the public and private sectors to work in improving their enterprises and at the same time improving the government
2. The modern economic system gives governments easy time to handle since most of the enterprises are privately owned.
3. Modern economic systems maximize the use of resources in countries: the government cannot manage all its resources.
Answer:
D. It identifies all possible combinations of goods and services an econo
Economic
Explanation:
