Question

PLEASE HELP ME !!!!

What is the mean for the data set?

682, 605, 648, 678, 654, 612, 606, 621, 642, 679

Express your answer as a decimal to the nearest tenth.

Question 1 options:

633


631.5


642.7


654

Answer 1

The mean of a set of elements is simply the arithmetic average:

mean=(sum of elements)/(number of elements)

mean=6427/10=642.7