Question

Leon counts the number of bugs he finds on his tomato plants each day and collects the following data: 18, 24, 15, 9, 10. The mean is 15.2. What is the final equation that he would use in determining the mean absolute deviation? Round each value to the nearest tenth

Answer 1

MAD = (|18 − 15.2| + |24 − 15.2| + |15 − 15.2| + |9 − 15.2| + |10 − 15.2|) / 5
= (2.8 + 8.8 + 0.2 + 6.2 + 5.2) / 5
= 23.2 / 5 = 4.64 ≈ 4.6