Answer : The mean score of Matthew's 7 geometry tests is, 84
Step-by-step explanation :
Mean : It is determine by adding all the numbers then divided by how many numbers there are.
[tex]Mean=\frac{\text{Sum of outcomes}}{\text{Number of outcomes}}[/tex]
As we are given that the set of data:
82, 78, 81, 89, 79, 92, 87
Now we have to determine the mean.
[tex]Mean=\frac{\text{Sum of outcomes}}{\text{Number of outcomes}}[/tex]
Sum of outcomes = 82 + 78 + 81 + 89 + 79 + 92 + 87 = 588
[tex]Mean=\frac{588}{7}=84[/tex]
Therefore, the mean score of Matthew's 7 geometry tests is, 84
