Answer:
Married people who have children.
Explanation:
The category of the U.S. population in which women do most of the housework is married people who have children. This has been true for thousands of years because women are the caretakers and men mostly go to work. This should stop because women are equal to men and they should both be able to have a job.
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.
A constant danger to people living in hunting and gathering societies is <u>"the forces of nature, including storms and droughts."</u>
Hunting and gathering societies refers to the societies that depend essentially or only on chasing wild creatures, angling, and assembling wild natural products, berries, nuts, and vegetables to help their eating regimen. Until the point when people started to train plants and creatures around ten thousand years back, every single human culture were seeker gatherers. Today, just a small division of the world's populaces bolster themselves in this way, and they survive just in detached, cold regions, for example, deserts, the solidified tundra, and thick rain woodlands.
The answer is: C. <span>conditioned response
</span><span>conditioned response refers to a special response toward a certain stimulus that would not comes naturally under normal circumstances.
In the example above, Khaleel associate the whistle with the tickles that usually soon to follow, which ended up him making the gigles every-time he's hearing the whistle.</span>
