1 / 8

Finding the mean

Finding the mean. of a set of numbers. A mean. is one of three types of average. The others are the median and the mode. The mean is the sum of the values divided by the number of values. Here is a set of 6 numbers 10 3 11 8 15 13.

tavia
Télécharger la présentation

Finding 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. Finding the mean of a set of numbers

  2. A mean • is one of three types of average. • The others are the median and the mode. • The mean is the sum of the values divided by the number of values.

  3. Here is a set of 6 numbers10 3 11 8 15 13

  4. To find the mean we add the numbers and divide by 6. 10 + 3 + 11 + 8 + 15 + 13 = 60 The mean is 10  60 6 = 10

  5. Notice that if we add 5 to each number10 3 11 8 15 13+ 5 become15 8 16 13 20 18

  6. The mean of the new numbers increases by 5. 15 + 8 + 16 + 13 + 20 + 18 = 90 The mean is 15  15 90 6 =

  7. Unlike the median the mean is influenced by extreme values. 10 3 11 8 15 13

  8. If we replace 13 by 613. 10 3 11 8 15 613 13 The mean becomes 110.

More Related