Create a dot plot of the data shown below. 20, 21, 21, 25, 20, 23, 27, 23, 24, 25, 26, 24, 23, 22, 24 which measure of center would best describe a typical value of the data set? why?

Median; 23

Step-by-step explanation:

We have been given a data and we need to find the center of the given data for that we will find median of the data

For median we have two formulas

Case 1: when n is odd

Case 2: when n is even

n is the number of observations given

Here, we have 15 observations

Then we will use the formula for when n is odd

After substituting value of n=15 in we will get

That means

And our

Hence, 23 is the center that would best describe a typical value of data set given.

10x

step-by-step explanation:

the greatest common factor 30 and 20 is 10

5 is a common factor of 30 and 20 but 10 is also a factor and 10 is greater than 5 so 5 will definitely not be apart of our answer

now the most amount of x's you factor our is just 1 factor of 1

so 10x the gcf of the terms in the polynomial

- 2 + 10x³ - 21x² + 19x - 4

step-by-step explanation:

each term in the second factor is multiplied by each term in the first factor

x²(- 2x² + 4x - 1) - 3x(- 2x² + 4x - 1) + 4(- 2x² + 4x - 1) ← distribute

= - 2 + 4x³ - x² + 6x³ - 12x² + 3x -8x² + 16x - 4

collect like terms

= - 2 + 10x³ - 21x² + 19x - 4 ← in standard form