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:
The correct answer is option B: Bein attractive versus being unacttractive is not one of the mahor conflicts in the changes of middle adulthood.
Explanation:
As one grows up people tend to have different conflicts but appearance is one that many struggles is not one for the men. Man dont feel looks are as important as being maily, being construtive and being young.
B I think
Explanation:
B, I think, hope u get it right
The <span>perspective on psychological disorders that andy's doctor use is: The medical perspective
The medical perspective ot a psychological disorder put more emphasizes on the Biological and physiological factors that could cause the disorder (such as chemcial imbalance)</span>
The results of Burger’s recent replication of Milgram’s obedience study suggest that <span>people's tendency to obey has remained about the same since Milgram's study.
Milgram's study was carried out in 1961 and it had to do with his experiment to see how people of different backgrounds and educational levels would react to listening to an authoritative figure who wants them to do something conflicting their morals.
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