What is the area of this trapezoid 5in 4in 3in 2in

Briefly explain how multiple regression enhances the two primary purposes of regression analysis.

maria [59]

The statistical goal of multiple regression analysis is to build a linear equation model that identifies the optimal weighted linear combination of independent variables in the study in order to optimally predict the reference variable.

Regression analysis is usually performed for one of two purposes. Predicting the value of the dependent variable of a person whose information about the explanatory variable is available, or estimating the effect of the explanatory variable on the dependent variable.

In multiple regression analysis, researchers can determine the strength of the relationship between the outcome (dependent variable) and multiple predictors, and the importance of each predictor in the relationship, often the effect of other predictors. It can be evaluated by statistically eliminating it.

Learn more about multi regression model here: brainly.com/question/17844286

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3 0

2 years ago

Select the points that lie on the function h(x) = 3x 2.

yulyashka [42]

The answer is (1,3) because when you graph it you can see it is on the parabola.

4 0

3 years ago

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A submarine left hawaii and travels east at an average speed of 10 mph. An aircraft. Carrier left at the same time and traveled

Rina8888 [55]

Answer:

10 hours

Step-by-step explanation:

Given:

Average speed of submarine = 10 mph

Speed of carrier in the opposite direction = 20 mph

Distance between the submarine and carrier = 300 mi

To find:

The time taken so that the distance between them is 300 mi ?

Solution:

The relative speed when they are traveling in opposite direction = 10+20 = 30 mph

Formula:

$\text{Time }=\dfrac{\text{Distance Traveled}}{\text{Speed}}$

$\text{Time }= \dfrac{300}{30} = \bold{10\ hours}$

So, the answer is <em>10 hours</em>.

6 0

3 years ago

lori says that 8 is not a factor of 80 because 8 does not end in zero. Does Lori's statement make sense? Explain

77julia77 [94]

You have to know that the zero has no value inless its in a place value .the 8 is a factor of 80 because 80 is 10 times as much as 8

5 0

3 years ago

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Variance is: Multiple Choice the average squared deviations about the mean of a distribution of values. an empirically testable

DENIUS [597]

Multiple choice answers are clearly defined as below for clarity:

A. the average squared deviations about the mean of a distribution of values.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena.

C. the error made by rejecting the null hypothesis when it is true.

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order.

E. a statement that is the opposite of the null hypothesis

Answer:

A. The average squared deviations about the mean of a distribution of values.

Explanation:

A. the average squared deviations about the mean of a distribution of values. Correct

Standard deviation is how data is distributed around the mean. It is also the square root of the Variance. Therefore, the variance is the square of the standard deviation which is distributed around the mean.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena. Incorrect

This is false as this is rather the definition for hypothesis.

C. the error made by rejecting the null hypothesis when it is true. Incorrect

This is false as this is the definition for the probability of committing a type I error

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order. Incorrect

This is false as this defines what a null hypothesis is.

E. a statement that is the opposite of the null hypothesis. Incorrect

The opposite of the null hypothesis is alternative hypothesis.

6 0

3 years ago