What does it mean when they say what is the mean of a data set?

Below.

Step-by-step explanation:

The mean is the average of a set of numbers:

Mean = sum of the values / number of values.

For example the mean of 2 6 8 12 is

(2 + 6 + 8 + 12) / 4

= 28/4

= 7.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

m=-16

step-by-step explanation: