Respuesta :

84+91+78+86= 339/4 = 84.75
Stephen46

Answer:

The answer is 84.75

Step-by-step explanation:

To find the average of the quizzes add the marks scored and divide by the number of quizzes that was conducted

From the question the marks were for 4 quizzes.

So his quiz average is

[tex] \frac{84 + 91 + 78 + 86}{4} \\ = \frac{339}{4} [/tex]

We have the final answer as

84.75

Hope this helps you