11. How is the graph of g(x) = 5x² - 2<br> related to the graph of f(x)= x2?

A company that relies on Internet-based advertising linked to key age demographics wants to understand the relationship between

MA_775_DIABLO [31]

Answer:

a)D. Since the company wants to predict revenue from advertising expenditure, the explanatory variable is advertising expenditure.

b)B. Since the company wants to predict revenue from advertising expenditure, the response variable is revenue

c)C. Since advertising expenditure is the explanatory variable, it should be plotted on the x-axis.

Step-by-step explanation:

a) The explanatory variable is the independent variable (the difference between explanatory an indepent is that independent means that it doesn´t depend of any variable at all and in the explanatory variable we are not 100% sure)

In this case, the company wants to know if the money they spend in advertising is related to the company's revenue. So , in this case the explanatory variablle is the money they spend in advetirsing while the dependent variable is the revenue ( that will increase or decrease depending on the money spent)

b) The response variable ist he dependent variable so like it was explained in a) is revenue.

c) In a cartesian graphic on the x axis we always draw the independent variable, so in this case we will draw the money spent in advertising.

7 0

3 years ago

Select all the distribution shapes for which it is most often appropriate to use the mean .

goblinko [34]

The distribution shape that tells us for which it is best to use the mean is the skewed.

This is the term that is used to refer to the average score that exists in a data set.

In the question, these are the reasons why the other options are not correct

When we say Bimodal we are talking about the 2 modes that are in a symmetric distribution. This has nothing to do with the mean

The bell shape has to do with how the normal distribution is when it is drawn. It would create a bell shape hence the mean is not useful.

symmetric has to do with the fact that there are mirror images when the vertical line is drawn in the distribution.

Uniformed shapes tells us that the classes are made up of the same frequency all through.

The skewed shape is what tells us if the median is more or if it is less.

Hence we have the answer that the distribution shapes for which it is most often appropriate to use the mean is the skewed.

11. How is the graph of g(x) = 5x² - 2 related to the graph of f(x)= x2?