Each student should respond with an initial post and at least 1 reply post a peer's post.  Read the below graph and answer the questions in your initial post.The data points display the change (eithe

Each student should respond with an initial post and at least 1 reply post a peer's post.  Read the below graph and answer the questions in your initial post.

The data points display the change (either decrease or increase) in running time after switching to a new shoe.

1. What type of graph is this that shows the distribution of quantitative data by plotting points on a number line?
2. A cluster is formed when several data points lie in a small interval. Data points for items in a cluster may have similar characteristics. Where are the cluster(s)?
3. A gap is an interval that contains no data. Are there any gaps? Where?
4. An outlier is a value that is much greater than or much less than other data points. Outliers may indicate an item that may be unusual in comparison with the other items. Are there any possible outliers? If so which data points?
5. Do you think this was from an observational study or an experiment? Why?