Measures of Central Tendency
-A value that represents the center of a data set
-Can be the mean,median, or mode
-data set is a group of numbers that must arrange in order from least to greatest
Eg: 2, 3, 4, 5, 6, 5, 4, 5, 3, 4, 5, 6, 7, 5, 34, 3
2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 7, 34
Median- the middle number in a set of data
after the data have been arranged in order
Median of 2 5, 6, 8, 9 is 6
Median of 1, 3, 6, 8, 9, 10 is 7 because if you have 2 numbers in the middle add them up the divide by 2. So 6+8=14/2=7
Solution: Odd = don't add
Even=add
Mode-the most frequently occurring number in a set of data
-mode and most both have 4 letters
-mode of 3, 5, 7, 7, 9 is 7
-mode of 2, 2, 4, 6, 6, 8, 11 is 2 and 6
-mode of 1, 2, 3, 5 is no mode
-mode of 1, 1, 1, 2, 2, 2, 3, 3, 3 is no mode
-mode of 1, 1, 1, 2, 2, 2, 3, 3, 3, 4 is 1, 2 and 3
Mean-a measure of central tendency
the sum of a set of values divided by the number of values in the set
-mean of 6, 4, 8 is 6 because you add them all together then divided by how much numbers there is. So 6+4+8=18/3=6
Range- the positive difference between the largest and smallest values in a data set
-Range of 4, 8, 5, 6, 9, 1, 3, 5, 8, 6, is 9-1=8
Outliers- a value that is much larger or smaller then the other data value
-the data set may have more than 1 outliers or zero outliers
Outliers are 1, 67, 68, 67, 64, 65, 100
Here is a video to help
Sorry if theres no link
7 comments:
Hi Aaron, good job on your scribe post! I like how it was organized, how it was easy to read your video was great and helpful. My suggestions are you should have put color to the text to give it more life and here's a link that might be helpful:http://www.basic-mathematics.com/measures-of-central-tendency.html
Hey Aaron, great job on your scribe post. I liked how you explained everything that we did in class today. I also liked how you added pictures that matched what we learned in class today, helped me understand a lot more. You should try adding some color to your fonts and making it bigger so that we could see better, other than that Good job on your scribe post. :)
Hi Aaron! I like your scribe post. It's really organize and very attractive to see. The definitions and examples really helped to understand more about Measures of Central Tendency. The pictures also help me and understand about Median. To make your post even better, I suggest you change the font size for the topic so that we know what you're talking about. I suggest you change the font color (too make it looks really fun to ready)! Here is a link I found: http://www.quia.com/rr/51667.html
Another video to help you: http://www.youtube.com/watch?v=7sg8bo_BGeM
Hi Aaron. Good job on your scribe-post. The examples for mean, median, and mode were helpful. I liked how the pictures showed examples for each mean, median, and mode. The video was helpful. I think you should change the colour and size of the font. Here's a video that could help. http://www.youtube.com/watch?v=8q-GiBmWXTk&feature=relmfu
Hi Aaron! your scribe-post was really well done, and organized! The definitions helped alot! Oh and I liked how you added an image for every definition it helped alot also! I liked how you made your fonts really easy for the reader to understand also! To make your post even better you should make your fonts. a little bigger so your reader would understand it even more! other than that goodjob! heres a link to help you with your post too! http://www.youtube.com/watch?v=7sg8bo_BGeM
Hi Aaron, awesome job on your scribe post! I liked how you showed pictures on how to find the median, mode, and the outlier. I also liked that video that you added. The video had a lot of information and it was easy to understand. I noticed that you already have a link but I had found another link that I think that you might like:
http://www.gamequarium.com/data.html
Hi Aaron! Good Job on your scribe post and organize. You have a lot of information and good understanding about mean, median, mode, outlier, and range. The pictures are great and colorful. I suggest you should change the fonts bigger, and put the colorful letters but you did a good job! :)
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