Microsoft Excel
Be careful when averaging percentages
Caution should be used when averaging percentages. As an example, we asked 500 kids and 4500 adults if they like Trix cereal. The kids, 98%, liked Trix cereal. The adults, 42%. Add 98% and 42% and you get 140%. Divide by 2 and that is 70%. (98+42=140 / 2