What is the mean of the data set? i got 177 when i added up the numbers but what would i divide 177 by?

12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

a.14.00

b.14.75

c.15.75

d.13.50

If you would like to know the mean of the data set, you can calculate this using the following steps:

The mean of the data set is the sum of all the data values divided by the number of these values.
  
12, 17, 16, 10, 20, 13, 14, 14, 12, 12, 19, 18

12 + 17 + 16 + 10 + 20 + 13 + 14 + 14 + 12 + 12 + 19 + 18 = 177
the number of data values: 12
177 / 12 = 14.75

The correct result would be B. 14.75.

It equals 1373.5 that’s the solution