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Bond [772]
3 years ago
15

A multiple regression model includes the term (X1)(X2). The term implies that _______.

Mathematics
1 answer:
Anna [14]3 years ago
6 0

Answer:

c

Step-by-step explanation:

In a multiple regression model X1 and X2 are two independent variables and the assumption is made that the effect of of X1 and X2 on dependent variables is independent of each other.For example let y be the student grade and x1 is the study hour and x2 be the IQ level of student so the multiple regression model for this scenario will be

Y=b0+b1x1+b2x2+e

Hence we can see that effect of study hour and IQ level on the student grade and the effect of study hour on the student grade is independent of the value of IQ level.

You might be interested in
12
nikitadnepr [17]

Considering the given discrete probability distribution, it is found that the expected share is of 10%.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

In this problem, the distribution is given by:

  • P(X = 0.05) = 0.2.
  • P(X = 0.1) = 0.6.
  • P(X = 0.15) = 0.2.

Hence the expected value is given by:

E(X) = 0.2 x 0.05 + 0.6 x 0.1 + 0.2 x 0.15 = 0.1 = 10%.

The expected share is of 10%.

More can be learned about the expected value of a discrete distribution at  brainly.com/question/24802582

#SPJ1

6 0
2 years ago
The movie theater has 250 seats, 225 seats were sold for the movie. What percent of the seats were not sold?
Igoryamba

Answer:

D. 10%

Step-by-step explanation:

First divide 250 by 10 to get how many seats are in 10%.

250/10 = 25

Then, divide 225 by 25 to see what percent was taken up.

225/25 = 9

9 x 10 = 90

100 = 90 = 10

Therefore, 10% of the seats were not sold.

5 0
4 years ago
Read 2 more answers
A contractor needs to buy nails to build a house. The nails come in small boxes and large boxes. Each small box has 100 nails an
ExtremeBDS [4]

Answer:

The system 150x+400y=1950 and x = y+2 could be used to determine the number of small boxes and large boxes ordered where x represents the number of small boxes and y represent the number of large boxes.

Step-by-step explanation:

Given,

Number of nails in small box = 150 nails

Number of nails in large box = 400 nails

Total nails in ordered boxes = 1950 nails

Let,

x be the number of small boxes ordered.

y be the number of large boxes ordered.

According to given statement;

150x+400y=1950          Eqn 1

The contractor bought 2 more small boxes than large boxes

x = y+2                           Eqn 2

The system 150x+400y=1950 and x = y+2 could be used to determine the number of small boxes and large boxes ordered where x represents the number of small boxes and y represent the number of large boxes.

Step-by-step explanation:

6 0
4 years ago
The volume of a cylinder is 54π cubic inches and the height is 6 inches. Find the radius.
Anika [276]

Answer:

The radius of the cylinder is 3 inches.

Step-by-step explanation:

For any given cylinder, the volume can be expressed as:

volume = \pir^{2}h

where r is the radius of its circular surface, and h is its height.

Given that: volume = 54π cubic inches, and the height = 6 inches.

then,

54\pi = \pi x r^{2} x 6

54\pi  = 6\pir^{2}

r^{2} = \frac{54\pi }{6\pi }

   = 9

r = \sqrt{9}

r = 3

The radius of the cylinder is 3 inches.

8 0
3 years ago
You intend to draw a random sample in order to test a hypothesis about an unknown population mean. You will use a hypothesis tes
Gre4nikov [31]

Answer:

The correct order is :

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

Step-by-step explanation:

The correct order of the steps of a hypothesis test is given following

1. Determine the null and alternative hypothesis.

2. Select a sample and compute the z - score for the sample mean.

3. Determine the probability at which you will conclude that the sample outcome is very unlikely.

4. Make a decision about the unknown population.

These steps are performed in the given sequence to test a hypothesis.

6 0
3 years ago
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