Question

Find the mean of the numbers 1, -3, -10 -15, 4, -22 -7.5, 3, -6.5

Answer 1

Answer:

13. -4 14. -11 15. $-\frac{11}{3}$

Step-by-step explanation:

13. (1-3-10)/3

14. (-15+4-22)/3

15. (-7.5+3-6.5)/3

Answer 2

Answer:

13. -4 14. -11 15. -3.6 continued

Step-by-step explanation:

13. 1+-3= -2+-10 -12/3= -4

14. -15+4= -11+-22= -33/3 -11

15. -7.5+3= -4.5+ -6.5= 11/3= -3.6 continued