1 / 9

The mean

The mean. Information. The mean. The World Stone Skimming Championships take place on Easdale Island in Scotland, UK. Here are some distances in meters for each category. How would you compare each of the categories?. The mean.

williammichel
Download Presentation

The mean

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. The mean

  2. Information

  3. The mean The World Stone Skimming Championships take place on Easdale Island in Scotland, UK. Here are some distances in meters for each category. How would you compare each of the categories?

  4. The mean The mean is the most commonly used average or measure of central tendency. To calculate the mean of a set of values we add together the values and divide by the total number of values. sum of values mean = number of values The mean is often denoted using the notation: . x This is read as “x bar.”

  5. The mean The mean distance (in meters) for each category are recorded in the table below. 28.75m 15m 27.50m Complete this table of mean distances. 21.88m 36.13m Calculate means for the Seniors and the Juniors (with male and female results combined).

  6. Here are the results (in m) for one stone-skimming contestant. Outliers and the mean 36.6 36.2 35.3 34.7 37.3 34.4 15.9 36.3 Discuss: • Are there any outliers? • Why might this outlier have occurred? • Will the outlier increased or decrease the mean? • Calculate the mean with and without with the outlier. How much does it change? It may be appropriate in research or experiments to remove an outlier before carrying out analysis of results. Why do you think this is?

  7. Stone-skimming mean

  8. Create the mean

  9. Discuss the mean

More Related