What is the difference between mean and median? clearly state the difference.

The arithmetic mean is the average.

The median is the value that occupies the central position.

Step-by-step explanation:

The arithmetic mean is the average, it represents the equitable distribution, it can be the sample mean and the population means. It is the value that corresponds to the sum of all data divided by the number of data in the set.

The median is the value that occupies the central position of all the data ordered from least to greatest, if the number of data is even, the median is the arithmetic mean of the two exchanges.

For example, for the set of numbers 6,12, 20, 9 and 18, the average can be calculated by first counting the

6 + 12 + 20 + 9 + 18 = 65

Then divide this result 65 by 5 which is the number of numbers that make up the set and that you added to obtain it, which results in 13, which would be the average of this set of numbers.

65/5 = 13

For the median, they are ordered from least to greatest.

Once this is done, we take the number located in the middle and this will be the median.

Thus we would have the numbers 6, 9, 12, 18 and 20. In this case, the median is 12.

Now we add  number to be even, 1, 6, 9, 12, 18 and 20, in this case, the 2 numbers of the center are taken and averaged

9 + 12 = 21

21/2 = 10.5

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions