Question

Matthew's first 7 tests in geometry class this year were 82, 78, 81, 89, 79, 92, and 87, respectively. What is the

Answer 1

Answer:c

Step-by-step explanation:82+78+81+89+79+92+87=588

And 588/7 =84

Answer 2

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.

$Mean=\frac{\text{Sum of outcomes}}{\text{Number of outcomes}}$

As we are given that the set of data:

82, 78, 81, 89, 79, 92, 87

Now we have to determine the mean.

$Mean=\frac{\text{Sum of outcomes}}{\text{Number of outcomes}}$

Sum of outcomes = 82 + 78 + 81 + 89 + 79 + 92 + 87 = 588

$Mean=\frac{588}{7}=84$

Therefore, the mean score of Matthew's 7 geometry tests is, 84