In order to identify the mean distance jogged by Jim for 6 days, we add up all of the distances and divide the sum by 6. That is, sum = 6.5 + 5 + 3 + 2 + 3.5 + 4 miles sum = 24 miles Dividing the sum by 6 will give us an answer of 4 miles. Thus, Jim jogged an average of 4 miles for 6 days.
Her answer is wrong because she the object cannot hit the ground at negative seconds. She could’ve have used other methods because she used the quadratic formula. The advantages is that it works for every situation. The disadvantages is that it takes longer. She should’ve used a different method.