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3 years ago

Gravitational field

Business

2 answers:

ololo11 [35]3 years ago

5 0

Answer:

The region of space surrounding a body in which another body experiences a force of gravitational attraction.

Please mark as brainlist.

koban [17]3 years ago

5 0

The attractive effect, considered as extending throughout space, of matter on other matter.

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Let x be per capita income in thousands of dollars. Let y be the number of medical doctors per 10,000 residents. Six small citie

MAVERICK [17]

Answer:

The percentage of variation esplained by the model is given by the determination coefficient, on this case:

$R^2 = 0.934^2 =0.872$

And we have 87.2% of the variation explained by the linear model given.

$\hat y = 5.756(8.5) -36.895=12.031$

And we have 12.031 doctors per 10000 residents.

Explanation:

Assuming the following dataset:

x y

8.6 9.6

9.3 18.5

10.1 20.9

8.0 10.2

8.3 11.4

8.7 13.1

Assuming this question: "The data has a correlation coefficient of r = 0.934. Calculate the regression line for this data. What percentage ofvariation is explained by the regression line? Predict the number of doctors per 10,000 residents in a town with a per capita income of $8500."

We want a linear model like this:

$y = mx +b$

Where m represent the slope and b the intercept for the linear model. And we cna find the slope and b with the following formulas:

$m = \frac{n \sum xy - \sum x \sum y}{n \sum x^2 -(\sum x)^2}$

$b = \frac{\sum y}{n} -m \frac{\sum x}{n}$

And from the dataset we have the following values:

$n= 6, \sum x =53, \sum y = 83.7 , \sum xy = 755.89, \sum x^2 = 471.04$

And replacing into the equation for m we got:

$m =\frac{6(755.89) - (53)(83.7)}{6(471.04) -(53)^2}=5.756$

And the intercept:

$b = \frac{83.7}{6}-36.895 5.756 \frac{53}{6}=-36.895$

And then the linear model is given by:

$\hat y = 5.756 x -36.895$

We can find the estimation replacing x = 8.5 into the linear model and we got:

$\hat y = 5.756(8.5) -36.895=12.031$

And we have 12.031 doctors per 10000 residents.

The percentage of variation esplained by the model is given by the determination coefficient, on this case:

$R^2 = 0.934^2 =0.872$

And we have 87.2% of the variation explained by the linear model given.

4 0

3 years ago

_____________ include all of the groups and/or individuals affected by a decision, policy, or operation of a firm or individual.

jeka57 [31]

Answer:

<u>Business ethics.</u>

Explanation:

Business ethics is the set of ethical and moral principles that exist in an organization to regulate its activities, actions and decisions that occur in the organization. The set of ethical values is directly determined by the organizational culture, and should be shared with all employees and organizational levels, as it is the business conduct of the company.

When well-established, corporate ethics ensure and motivate positive behavior, enhance a company's reputation and ensure its safety in the marketplace.

7 0

2 years ago

Project risk is lowest during the: Finish phase of the project life cycle. Conceive phase of the project life cycle. Develop pha

olchik [2.2K]

Answer:

Finish phase of the project life cycle.

Explanation:

The finish phase (or termination, or completion phase) of a project life cycle is basically when the project is completed and it is being delivered to the customer. Depending on the project, paperwork and documents are handed out to the customer, contracts with workers and suppliers are terminated. Everyone involved with the project must be notified about its completion and all obligations are paid for.

5 0

2 years ago

_________are places that sell merchandise from a single manufacturer, usually at lower prices than other retailers.

Furkat [3]

Whole sailers sells at lower prices

8 0

3 years ago

Read 2 more answers

Karen and Mike currently insure their cars with separate companies, paying $400 and $600 a year. If they insured both cars with

Papessa [141]

Answer:

$1,720

Explanation:

Total annual premium for both Karen and Mike = $400 + $600 = $1,000

If they insured both cars with the same company, they would save 15% on the annual premiums -> the annual saving = 15% * $1,000 = $150

We use formula FV to calculate the future value of annual payment:

= FV(rate, number of payment, - payment) = FV(3%,10,-150) = $1,720

4 0

3 years ago

Gravitational field​

Gravitational field