The correct answer is option A. 1,18.
Linear regression is a method used to identify the trend Or similarity between two sets of data. All the given points of the data set are plotted and a straight line is drawn with the points. The line is called a line of regression.
F Test is a test that is used to check if the given line of regression is a good fit for the given data set or not. F ratio is the ratio obtained by dividing the two mean square values of the data set.
The numerator of the given regression is always 1
The denominator of the regression is given by n-2=20-2=18.
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60. An analysis of regression is used to test the significance of a linear regression equation based on a sample of n=20 individuals. What are the df values for the F-ratio?
a. 1, 18
b. 1, 19
c. 2, 18
d. 2, 19
Explanation and answer:
A rain shadow is a patch of land that has been forced to become a desert because mountain ranges blocked all plant-growing, rainy weather. On one side of the mountain, wet weather systems drop rain and snow. On the other side of the mountain—the rain shadow side—all that precipitation is blocked.
In a rain shadow, it’s warm and dry. On the other side of the mountain, it’s wet and cool. Why is there a difference? When an air mass moves from a low elevation to a high elevation, it expands and cools. This cool air cannot hold moisture as well as warm air. Cool air forms clouds, which drop rain and snow, as it rises up a mountain. After the air mass crosses over the peak of the mountain and starts down the other side, the air warms up and the clouds dissipate. That means there is less rainfall.
You’ll often find rain shadows next to some of the world’s most famous mountain ranges. Death Valley, a desert in the U.S. states of California and Nevada, is so hot and dry because it is in the rain shadow of the Sierra Nevada mountain range. The Tibetan Plateau, a rain shadow in Tibet, China, and India has the enormous Himalaya mountain range to thank for its dry climate.
Answer:
This system is known as Federalism.
Explanation:
This is a system of government in which power to govern is shared between the state government and national government, with state government flexing those powers without the interference of the national government.
Its concept represents a solution to functional problems within the issues of confederation which has failed to grant several notable powers to the national government.
<span>He would be called an ecologist. And the study of ecosystems is called ecology
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Answer:
B. housing, transportation, and food
Explanation:
According to my research on basic economics and household spending habits, I can say that based on the information provided within the question it is housing, transportation, and food that make up three-quarters of the market basket. This is because these are the three categories that are considered necessities within a normal household. This is because housing provides shelter, food provides nutrition, and transportation provides a means of getting to work. Which are all necessities.
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