The correct answer is D.
<u>It is an observational study</u><u> because the researcher is </u><u>NOT</u><u> manipulating the explanatory variable</u>, whether a person drinks green tea or not, in order to study the effect of the value it takes, over the dependent variable: LDL cholesterol level.
<u>In opposition, experimental studies manipulate the explanatory variable</u> in order to assess the effects caused on the dependent variable by such deviance.
Answer:
Personal involvement is important because leadership is about driving people towards the achievement of a goal, and one of the most effective ways of doing so is engaging personally with the people (the employee).
When a leader has personal involvement, the leader inspires more, and gains more trust from employees, meaning that the goals of the team are more likely to be achieved.
Answer:
27 houses have swimming pool
Explanation:
Then the Question states that the number of houses with a patio and swimming pool are the same as the ones who don't and the question also states that 38 of the 48 houses only have patios then 10 houses have swimming pools and a patio. So it can be concluded that 10 houses do not have swimming pool and patio. So we can safely deduce that 75 minus 38(houses with only patio) equals 37 and 37 minus 10(houses without patio and swimming pool) equals 27.
In the given context, we can conclude that about 38% of women cooked dinner everyday in 2014.
Option: B
<u>Explanation:</u>
The survey was conducted by a social networking site and on just among the female users of it. So, if we consider the total number of female users as a 100% then out of them 38% responds in favor of the question. So, in this case we can't say that the survey is stratified survey because its only worked on female users.
It's also can't called under coverage because particularly the female users of that sites are targeted not overall female population of world. Even we can't say that sample size is small. Because wherever we will mention the survey result it will be clearly mentioned that there only female users of Pushpin are surveyed.
Answer:
plows ,pots from clay, mirrors,swords.
Explanation:
plow
One of the characteristic of civilization is stable food supply. Plow helped Sumerian to be much faster and efficient to grow crops. Because of that they life got easier and they could expand activities they could attend during the day.
