Respuesta :

dalope32150

Answer:

9.06

Step-by-step explanation:

1. Add up all data values to get the sum:

-8 + 12 + 25.9 + -6.3 + 21.9 = 45.5

2. Count the number of values in your data set:

5

3. Divide the sum by the count:

45.4/5 = 9.06

4. You can round to 9.1