Answer:
The average number of points Joshua scores is
4.2
Step-by-step explanation:
In two games Joshua scored 8 points each.
In one game he scored 3 points.
In two games he scored 7 points each.
In four games he scored 1 point in each game.
and in the last game Joshua scored 5 points.
from the above information we get the following data set
8 Â 8 Â 3 Â 7 Â 7 Â 1 Â 1 Â 1 Â 1 Â 5
in order to find the average number of points Joshua scores,we need to find the mean of above data sets
  =  (8+8+3+7+7+1+1+1+1+5)/10
  = 42/10
  = 4.2
Hence, Â the average number of points Joshua scores is 4.2
