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.
Georgia was an ideal place for military training camps for a number of reason.
The chief reason was/is climate. Georgia has a mild climate, enabling training year round.
Georgia has also had strong politicians enabling base protection and financial investment.
Council-manager type of city government in the city council select a person to be a chief administrator.
In a council-manager system, an elected city council acts as the main legislative body of the municipality and appoints a chief executive officer known as a city manager to oversee daily municipal operations, create a budget, and carry out and enforce the council's policy and legislative initiatives.
A municipality's or local government area's legislative body is the municipal council. It may be referred to as a city council, town council, town board, community council, rural council, village council, or board of aldermen, depending on the location and classification of the municipality.
The council-manager type of local government combines an appointed city government manager's extensive management expertise with the powerful political leadership of elected politicians acting in the capacity of a council or other governing body.
To learn more about Council-manager, refer
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To answer the three key questions, to make decisions concerning what, how and for whom
Presidential vetoes, some people from senate or the house of representatives might kill a bill and keep it from becoming law.
<u>Explanation:</u>
When a bill gets vetoed by the president, then the bill goes back to the congress. The congress for getting the bill passed has to over ride the bill by getting at least a majority vote of two thirds.
But the over riding of the veto is very difficult because getting so many votes in majority is very tough. So if the over riding does not take place, the bill dies and does not become a law.
