Describe 3 different models (mathematical or otherwise) that you use or encounter frequently in everyday life.  What is the underlying ‘reality’ that those models represent?  What simplifications are made in constructing those models?”

Do number 2 only. #2

Directions: Identify which is the dependent and independent variable in a given situation or hypothesis using the implied use of this variable in the situation or hypothesis as your basis.

C (gross cost of UPS Inc. in billions of $) and R (gross revenue of UPS Inc. in billions of $) O E (years since 2010) and P (gross profit of UPS Inc. in billions of $) (b) Find an equation for a model of these data. (Use the first and last values in the table to calculate your equation. Round the slope and the vertical intercept to one decimal place. Note th -Select- () Give a reasonable domain and range for this model. domain O (-10, 10] O [11, 15] O -0, 0) O [0, 20] O [-2, 8] range [41.9, 47.8] O [-50, 50] [37.3, 52.3] [0, 100] O (-o, co) (d) What is the slope of your model? Explain its meaning in this situation. (Round your slope to one decimal place. Do not include units in your answer.) The slope is This means that the gross profit for UPS Inc. --Select--- by about that value in billions of dollars each year. (e) Estimate the gross profit for UPS in 2019. (Round your answer to the nearest tenth of a billion dollars. Include units in your answer. More information.) In 2019, the…

A small-business owner wants to assess the effects of advertising on sales levels. The owner collected paired observation data. Each pair consisted of monthly advertising expenditure and monthly sales levels (in thousand dollars) which is reported in the table below.  Advert (X) Sales (Y) 1                 30 3               40 5               40 4.              50 2              35 5               50 3              35 2             25       Complete the attached table.

Can you interpret the Model summary table in detail.

If all parameters need to be optimized, which of the models can use Goal Seek to optimize? Group of answer choices y=A?x^B y=A?x+B y=A?x y=B?x+A

If data set has a relationtionship that is best described by a linear model, then the residual plot will

6. $(23) 7. $(39) 8. $(55)

Answer the questions in the picture please, explain each answer please! Thank you!