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:
Explain
Explanation:
Explanation of research findings done step by step by the researcher. In the research, when a researcher conducts a study, explain it systematically. There are several steps to explain a research method in a systematic way
- The variability
- The predictability
- The fallibility
These are the scientific principle of research methodology. There are some basic principle of scientific research method such as
First to make the observation
- Make the hypothesis
- Test the hypothesis
- Collect data
- Explain
- Result
Answer:the U.S. constitution preamble sets the stage for the constitution. It clearly communicates the intentions of the framers and the purpose of the document. The preamble is an introduction to the highest law of the land it is not the law. It does not define government powers or individual rights.
Explanation:
The probability of aggression increases because of how the individual would deal with interactions in relation with problems or situations that is happening on his or her life. It is also because of the individual's beliefs that could cause an increase in aggression.
