A statistically significant result in a psychology experiment refers to a

18. Which biogeochemical cycle could be disrupted without causing much harm to living things?

natita [175]

I could be wrong but this one seems to make the most sense so D. none

8 0

2 years ago

Suppose R and Q are two events such that P(R)= .14, P(Q) = .52, and P(R∩Q)= .20, find P(RUQ), are the events mutually exclusive

saw5 [17]

Answer:

#

P(R I Q) = P(RnQ) / P(Q) = 0.1 Therefore P(RnQ) = 0.1 X 0.35 = 0.035 (The intersection in the centre of a Venn Diagram)

P(RnQ') = 0.15 In a Venn Diagram this is R but excluding the centre intersection with Q. Therefore P(R) = P(RnQ') + P(RnQ) = 0.15 + 0.035 = 0.185

P(RUQ) = 0.15 + 0.035 + 0.315 = 0.5 so 0.5 must be outside the Venn Diagram circles.

Explanation:

hope this helps

4 0

3 years ago

Allie is shopping when she finds a pair of running shoes priced at $90. When Allie uses her debit card to pay, it is declined be

Nadusha1986 [10]

Answer:

The economic concept of scarcity.

Explanation:

In economics, scarcity represents the phenomenon of limitless wants suppressed by limited resources.

In this case, Allie feels she needs $90 shoes while she has not got the resources required to buy them.

This typical economic problem can be solved by moderating one's wants and clearly identifying what is priority from what is not, then intelligently making decisions on what available resources should be spent.

7 0

3 years ago

Piaget believed that children learn by using __________ to adjust their cognitive schemes

dangina [55]

Children learn by using their senses and to adjust their cognitive schemes.

7 0

3 years ago

A. Using information in the graph shown, compare the data trend from 1960 to 2015 for sub-Saharan Africa to the trend shown for

expeople1 [14]

Answer:

A. From the information given in the graph, we have;

The grain yield in pounds per acre for Europe in 1960 is approximately 1,600 Pounds per Acre

The grain yield in pounds per acre for Europe in 2015 is approximately 5,100 Pounds per Acre

The rate of change of grain yield in Europe ≈ (5,100 - 1,600)/(2015 - 1960) = 63. $\overline{63}$ Pounds per Acre per year

The grain yield in pounds per acre for Sub-Saharan Africa in 1960 is approximately 800 Pounds per Acre

The grain yield in pounds per for Sub-Saharan Africa 2015 is approximately 1,250 Pounds per Acre

The rate of change in grain yield in Sub-Saharan Africa ≈ (1,250 - 800)/(2015 - 1960) = 8. $\overline{18}$ Pounds per Acre per year

Therefore, the grain yield per acre per year in Europe is increasing approximately 8 times the increase in Sub-Saharan Africa

B. Given that the rate of increase in the pounds of grain per Acre per year in Europe is progressively increasing above the average rate of world rate, the market for the grains produced in Europe will be partly the developing countries, thereby reducing the number of farms found in developing countries

C. In stage 4 demographic transition the population growth is stabilizing and therefore where there is an increase in grain yields, there will be an increase in farming and economic activity and a reduction in population growth

Where there is a decrease in grain yield, there will be an increase in activities to restore supply and therefore, a reduction in population

D. One limitation of the data in describing food security at a regional scale is the information required on the population figures in a given region involved in grain farming

Explanation:

5 0

3 years ago