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:
B. If a proposed study qualifies for exemption, federal regulations do not require review at the foreign site where it will be conducted.
Explanation:
Researches that are exempt from review consist of studies with human subjects that do not implicate more than the minimal risk and match one or many exempt categories. OPHS staff evaluates exempt research applications, and this process is shorter and faster than the one for non-exempt research.
Answer:
participation, accountability, conflict resolution and concern for equality and justice.
Explanation:
It's the answer hope it helps.
Mark me as Brainliest plz!
The answer is Biopsychosocial approach.
It is an integrative approach incorporating neuroscientific, cognitive and social-cultural theories into understanding human development, behavior and thought processes. It is used predominantly when studying illness as it recognizes that illnesses result from complex interactions of biological, emotional, cognitive, social and environmental factors.
The answer to your question is d.
