Each week Sara's science teacher gives a 15 point quiz. Her current scores are shown in the table. What is Sara's mean quiz score?
To find Sara's mean quiz score, we need to add up all her scores and then divide by the number of quizzes she has taken.
10 + 12 + 14 + 13 + 11 = 60
She has taken 5 quizzes.
Mean quiz score = 60 / 5 = 12
Sara's mean quiz score is 12.