You record the age, model, exterior paint color, interior color, engine size, number of cylinders and cost of 1463 used cars in an online car dealership. The number of variables you have recorded is

The number of recorded variables is 7

Mathematical variables are representations of data

The variables listed in the online car dealership are:

If the variables listed above are counted, we will have 7 variables altogether

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the number of variables that recorded is 7

Step-by-step explanation:

The computation of the number of variables that recorded is shown below:

1. Age

2. Model

3. Exterior paint color

4. Interior color

5. Engine size

6. Number of cylinders

7. Cost of 1463 used cars

Hence, the number of variables that recorded is 7

The same is to be considered

question

what is the value of the third quartile of the data set represented by this box plot? a. 19 b. 21 c. 26 d. 29

answer

c

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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