Question

The track coach at the local high school wanted to know what the average time was for the 100-yard dash for his track team. One day he timed them. He got the following times for the twelve members of the track team: 11, 10.9, 10.8, 9.9, 9.7, 9.8, 10.1, 10.2, 9.8, 10.6, 10.5, and 11.5 seconds. To the nearest tenth, what is the average length of time it takes a member of the track team to complete the 100-yard dash?

I'm mainly asking because I think I have the answer, but I'm not sure I did my math right, so I'm asking to see if someone else gets the same answer I got.


also this isn't a college level question, I don't know why it says that, it's a high school level

Answer 1

Answer: To find the average time for the 100-yard dash for the track team, we need to add up all the times and divide by the number of members on the team.

Adding up all the times, we get:

11 + 10.9 + 10.8 + 9.9 + 9.7 + 9.8 + 10.1 + 10.2 + 9.8 + 10.6 + 10.5 + 11.5 = 124.8

There are 12 members on the team, so we divide the sum by 12:

124.8 / 12 = 10.4

To the nearest tenth, the average time for the 100-yard dash for the track team is 10.4 seconds.

So, the answer to your question is 10.4 seconds.

Explanation: