The experiment shows a negative correlation, because more phone calls predicted fewer medical consultations for illnesses, as shown in the first answer option.
<h3>
How to identify a negative correlation?</h3>
- Identify two directly related elements or factors.
- See if the existence of one of these elements combats the existence of the other.
- See if increasing one element causes the other to decrease and vice versa.
In the experiment shown above, it is possible to observe that the frequency of calls from nurses reduced the need for medical consultations for pregnant women, which shows a negative correlation between the elements.
More information about correlation in the link:
brainly.com/question/13576407
That type of researchers studies is called <span>longitudinal Research
Example of </span><span>longitudinal research would be
- Studies that aimed to learn whether environment played more important roles in personality development compared to genetic by observing Identical Twins that are separated at birth from infants until they grow up.</span>
They should not complain about bad treatment because the South is still recovering from the war.
<u>Explanation:</u>
At the wartime, African played a crucial role in America getting independent. In that time, they faced oppression, then they saw an opportunity to break free from slavery and unfair behaviour.
During the war, blacks fought for both the sides which so ever can help them in gaining freedom in when a new country is created. Black history and the south suffered a lot from racial discrimination.
Blacks have even tried to find a place in private or a working sector. their struggle is very long and hard. They have always fought for their survival. If America was able to get free from Britain than southern black has been so important in doing it.
Answer:
Explanation:
Oregon trail was around 2,000 miles long.
The trip took about five to six months and in some cases almost a year.
The trail was the the only land route for people looking to move west. It let people move from the populated east and expand westward.
California trail was open from 1841-1869
Led more than 250,00 people who were seeking gold and was thought to be the biggest mass migration in US history.
People used the California trail because it led them to goldfields and rich farmland.
Santa fe Trail was a highway that connected Missoiri to Santa fe, New Mexico.
In 1846 The trail was used in the Mexican American War, were Americans invaded Mexico.
Some people used the trail to move out west but a lot of people used it as a trade route. Settlers gathered up goods from the US and went to Santa fe hoping to make a profit.
Hope this helps a little bit!
Producers undergo photosynthesis, Nitrogen compounds are released into the air
