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:
Explanation:
▼ Coffee beans purchased by a coffee shop (intermediate good)
▼ One share of Google stock (neither)
▼ A new pick-up truck purchased by a consumer (final good)
▼ A new home purchased by a family (final good)
Statements of authority provide the strongest evidence in scientific discussions when they are based on statements that are, "consistent with findings from high-quality scientific research on the subject."
The statements which are based on findings from high-quality scientific research are accurate and so they provide the strongest evidence in scientific discussions.
The Scientific method of research is neutral, objective, rational, and as a result, is able to approve or disapprove the hypothesis. The research method includes the procedure to obtain data and evaluate the variables, and then it obtains analyzable data.
Hence, the statements based on high quality scientific research provide the strongest evidence.
To learn more about the scientific research here:
brainly.com/question/6139379
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Answer: d) Employees have considerable legal protection against surveillance.
Explanation:
According to the situation described in the question, for finding those employees who are stealing money from the bank , bank can set up cameras to observe their activities with informing them.
Bank can also observe the use of internet done by employee on bank monitors to know about their activity on internet and tracking any suspicious event.Bank can also read employees emails to know about the sources from where they are sending an receiving the mails from.
The only incorrect step would be employees taking lawful protection from getting surveillanced as this would not help in tracing the culprit of stealing money.
This the correct option is option(d).
Answer:
By killing or overthrowing old emperors
Explanation:
