<u>Answer:
</u>
For Amy to feel pain, there must have been sufficient stimulation of a neuron to create an action potential, which is the first step in neural communication.
<u>Explanation:
</u>
- The neural communication that is carried out within our body between various organs and the brain is mainly characterized by the exchange of neurons that takes place between the two.
- Neurons play the role of messengers and deliver the information of sensations that are felt by the affected part of the body.
The continents are not drifting, exactly. They are physically attached to the tectonic plates, which are basically enormous slabs of rock that are stacked on top of each other. The tectonic plates cause the continents to move in a process known as <u>plate tectonics,</u> also causing earthquakes, sink holes, and a number of other natural disasters. I think the best way to make a visualization of this is making a plate of pancakes, and stacking them while only half of each pancake is on top of the previous one, and as it goes up, it becomes more steep, until the point where they fall over.
Ethnic identity involves the identification of the youths who are in the
minority with their ethnic culture and in other ways with the majority culture.
Culture is defined as way of living by a set of people. Culture is very
diverse and unique. Such unique examples include way of dressing, foods
eaten and predominant occupation of the people.
The minority usually have to identify with the majority tribe as a result of
their way of things being commonly and more frequently done.
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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.
