Mean Median Mode Range

876 views
751 views

Published on

Published in: Education
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
876
On SlideShare
0
From Embeds
0
Number of Embeds
6
Actions
Shares
0
Downloads
18
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Mean Median Mode Range

  1. 1. Mean, Median, Mode & Range
  2. 2. <ul><li>Mean, Median, Mode are all types of average. An average summarises groups of data. </li></ul>
  3. 3. Mean <ul><li>Average often means the ‘mean’ </li></ul><ul><li>Mean = total of the numbers divided by how many numbers. </li></ul>Class shoe sizes: 3, 5, 5, 6, 4, 3, 2, 1, 5, 6 Add up the numbers: 3 + 5 + 5 + 6 + 4 + 3 + 2 + 1 + 5 + 6 = 40 Divide by how many numbers: 40 ÷ 10 = 4 The class mean shoe size is 4
  4. 4. Median <ul><li>Median is the middle value </li></ul><ul><li>Put the numbers in order </li></ul><ul><li>Choose the number in the middle of the list. </li></ul><ul><li>If there are 2 numbers in the middle then it is halfway between them. </li></ul>Class shoe sizes: 3, 5, 5, 6, 4, 3, 2, 1, 5, 6 Put in order: 1, 2, 3, 3, 4, 5, 5, 5, 6, 6 The class median shoe size is 4.5
  5. 5. Mode <ul><li>Mode is the most common number </li></ul><ul><li>Put the numbers in order </li></ul><ul><li>Choose the number that appears the most frequently. </li></ul><ul><li>Sometimes there may be more than one mode. </li></ul>Class shoe sizes: 3, 5, 5, 6, 4, 3, 2, 1, 5, 6 Put in order: 1, 2, 3, 3, 4, 5, 5, 5 , 6, 6 The class modal shoe size is 5.
  6. 6. Range <ul><li>Range is how far from biggest to smallest. </li></ul><ul><li>Put the numbers in order </li></ul><ul><li>Take the smallest number from the largest. </li></ul>Class shoe sizes: 3, 5, 5, 6, 4, 3, 2, 1, 5, 6 Put in order: 1, 2, 3, 3, 4, 5, 5, 5, 6, 6 Subtract smallest from largest: 6 – 1 = 5 Range: 5

×