Question

The enrollment of a school during seven consecutive years was as follow :
1580,2020,2580,3200,3550,3710,4010.
a) Find the mean enrollment of the school for this period.
b) Find the new mean, if the enrollment of the current year, that is 4,270 is also included

Answer 1

Answer:

(A) 2950

(B) 3115

Step-by-step explanation:

1) 1580+2020+2580+3200+3550+3710+4010=20650

2) 20650/7=2950

3) 20650+4270=24920

4) 24920/8=3115