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
The answer should be either a or b Try Those decisions just Trying To help others
The pricing model requires the consumer to initially pay to download the app and then offers the ability to buy additional functionality are <u>Paid apps with</u><u> in-app purchases </u>
This is further explained below.
<h3>What are <u>Paid apps with</u><u>
in-app purchases</u>?</h3>
Generally, Inside of an app, you may pay for additional material or subscriptions via a process known as "in-app purchases."
In-app purchases are not available in every app. Find the app in question inside the App Store before you buy it or download it to see whether or not it supports in-app purchases.
Then seek for a phrase that says "In-App Purchases" close to the price of the app or the Get button.
In conclusion, The pricing model requires the customer to pay to download the app initially and then provides the option to acquire more functionality via in-app purchases.
These applications are considered to be paid apps with in-app purchases.
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In its first second of free fall, a dropped softball will fall a vertical distance of 5m.
An object in free fall is falling freely with no forces acting on it except gravity, a defined constant, g = -9.8 m/s2. The distance an object falls, or its height, h, is equal to 1/2 gravity x the square of the time it falls.
And the equation is Distance travelled by an object falling for time : d=1\2gt^{2}.
if we place the values of we find that after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 m which is approximately 5m.
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