if the mean of the data set 12, 19, 2, 4, 11 and x is 11 , what is the value of x?

Question

I don't know how to answer this . how would I go about finding the value of x?

Answer 1

(12 + 19 + 2 + 4 + 11 + x)/6 = 11

48 + x = 66

x = 18

 

Answer 2

"mean" is a term that tells you the sum of the values divided by the number of values.

 

So, (12 + 19 + 2 + 4 + 11 + x)/6 = 11

 

(12 + 19 + 2 + 4 + 11 + x) = 11(6)

 

48 + x = 66

 

I bet you can finish from here.

Answer 3

Hi, Manuel

The mean is the average. So you would add all the values and then divide by the number of values in the set.

So,

(12 + 19 + 2 + 4 + 11 + x ) ÷ 6 = 11

 

(48 + x)/6 = 11

Now,, multiply both sides by 6:

48 + x = 66

x = 18