Calculating the mean, median and mode.<br />
Calculating the mean (average score)<br />Max, Hayley, Ray and Yasmin have some chocolates.<br />Hayley <br />Ray<br />Yas...
Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each...
Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each...
Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each...
Calculating the mean (average score)<br />Now to find the mean of 10,12,8,9 and 11.<br />
Calculating the mean (average score)<br />Work this out by adding <br />10+12+8+9+11=<br />
Calculating the mean (average score)<br />Work this out by adding <br />10+12+8+9+11=		50<br />
Calculating the mean (average score)<br />There are 5 scores, so <br />50 divided by 5 =<br />
Calculating the mean (average score)<br />There are 5 scores, so <br />50 divided by 5 =<br />10<br />
Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5...
Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5...
Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5...
Calculating the median (middle score)<br />Start counting one off from each end until there is only one number left in the...
Calculating the median (middle score)<br />Now to find the median for the following scores.<br />5,21,7,20,9,18,12,13,15,1...
Calculating the median (middle score)<br />Now to find the median for the following scores.<br />5,21,7,20,9,18,12,13,15,1...
Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers toge...
Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers toge...
Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers toge...
Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mo...
Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mo...
Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mo...
Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />
Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />The answer is …………………....
Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />The answer is …………………....
Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />
Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />The answer is ………...
Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />The answer is ………...
Mmmmm!!!!!!!!!!!!!<br />
Upcoming SlideShare
Loading in...5
×

Calculating the mean, median and mode

2,256

Published on

averages

Published in: Education, Business, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
2,256
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
62
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Calculating the mean, median and mode

  1. 1. Calculating the mean, median and mode.<br />
  2. 2. Calculating the mean (average score)<br />Max, Hayley, Ray and Yasmin have some chocolates.<br />Hayley <br />Ray<br />Yasmin<br />Max<br />
  3. 3. Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each have?<br />How do you work this out?<br />
  4. 4. Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each have?<br />How do you work this out?<br />Add up all the numbers.<br />
  5. 5. Calculating the mean (average score)<br />If the chocolates are to be shared equally amongst them, how many will they each have?<br />How do you work this out?<br />Add up all the numbers.<br />Divide this total by the number of scores you added up.<br />
  6. 6. Calculating the mean (average score)<br />Now to find the mean of 10,12,8,9 and 11.<br />
  7. 7. Calculating the mean (average score)<br />Work this out by adding <br />10+12+8+9+11=<br />
  8. 8. Calculating the mean (average score)<br />Work this out by adding <br />10+12+8+9+11= 50<br />
  9. 9. Calculating the mean (average score)<br />There are 5 scores, so <br />50 divided by 5 =<br />
  10. 10. Calculating the mean (average score)<br />There are 5 scores, so <br />50 divided by 5 =<br />10<br />
  11. 11. Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5.<br />
  12. 12. Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5.<br />The first thing to do list the scores in order<br />
  13. 13. Calculating the median (middle score)<br />To find the median for the following list of scores<br />20,13,6,17,9,8,10,12,5.<br />The first thing to do list the scores in order<br />5,6,8,9,10,12,13,17,20.<br />
  14. 14. Calculating the median (middle score)<br />Start counting one off from each end until there is only one number left in the middle.<br />
  15. 15. Calculating the median (middle score)<br />Now to find the median for the following scores.<br />5,21,7,20,9,18,12,13,15,17.<br />
  16. 16. Calculating the median (middle score)<br />Now to find the median for the following scores.<br />5,21,7,20,9,18,12,13,15,17.<br />Start by counting off one from each end.<br />This time there are two numbers in the middle.<br />What do you do?<br />
  17. 17. Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers together then divide them by 2.<br />
  18. 18. Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers together then divide them by 2.<br />(13+15) ÷ 2 =<br />
  19. 19. Calculating the median (middle score)<br />The two numbers left in the middle are 13 and 15.<br />Add the two numbers together then divide them by 2.<br />(13+15) ÷ 2 =<br />14<br />
  20. 20. Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mode.<br />
  21. 21. Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mode.<br />You can often work out the mode by looking at displayed data.<br />
  22. 22. Find the mode (most common score)<br />The third type of average that can be found for a list of scores is known as the mode.<br />You can often work out the mode by looking at displayed data.<br />There may be more than one mode or no mode if all the scores are different.<br />
  23. 23. Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />
  24. 24. Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />The answer is ………………….<br />
  25. 25. Find the mode (most common score)<br />Find the mode for these scores<br />7,11,13,11,8,7,5,9.<br />The answer is ………………….<br />Both 7 and 11 are modes.<br />
  26. 26. Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />
  27. 27. Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />The answer is ………………….<br />
  28. 28. Find the mode (most common score)<br />Now find the mode for these scores<br />7,8,14,11,12,9,10,5.<br />The answer is ………………….<br />There is no mode.<br />
  29. 29. Mmmmm!!!!!!!!!!!!!<br />
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×