Final answer:
Mia's average quiz score is 87%.
Step-by-step explanation:
To find Mia's average quiz score, we need to add up all her scores and then divide by the number of quizzes she took.
So, adding up her scores:
82 + 93 + 80 + 94 = 349
Now, we divide the sum by the number of quizzes:
349 ÷ 4 = 87.25
Since we need to round to the nearest whole percent, Mia's average quiz score is 87%.