Brian+Scott

media type="custom" key="22985276" width="90" height="90" Meanmedia type="custom" key="22985360"Medianmedia type="custom" key="22985534"Modemedia type="custom" key="22990912"

 Hey Diddle Diddle

The reason I picked these 3 videos is because the most obvious reason because its about Mean,Median,and Mode. But the main reason is that it teaches you the basics of the Mean,Median,and Mode. I think that these videos would help anyone that was having trouble understanding any of these math terms. For example if your teacher didn't teach it for your understanding then you could get on the internet and look up these videos and they break it down for your understandence. For example if i had a set of numbers like 1,3,4,4,7,10 The mean would be 1+3+4+4+7+10=29 29/6= 4.833333333 so the mean would be 4.833333333. The median would be 4. Also the mode would be 4. And the range would be 9.

Like I said in the previous paragraph, these videos break it down and show all the steps of Mean,Median,Mode. What you do for the mean is, you add all the numbers up then you divide by how many numbers you added all together. What you do for the median is you put all the numbers in order. Then you scratch off a number on the far left and then you scratch a number on the far right. But if you have two numbers left over then you add those two numbers and then divide by how many numbers you added, the same process as the mean. What you do to find the mode is you look for the number that comes up most frequently in the set of numbers. media type="custom" key="22991020"Standard Deviation Here is another video that will show you the basics of standard deviation. This video also breaks down how to do standard deviation. Stndard Deviation quantifies how diverse the data of your data set are. But what you do for standard deviation is you collect your data in which you want to put in standard deviation, then you calculate the mean of the set of numbers, then you subtract the mean by the first number in the data set and so on, Then the square the differences. Then after that you find the mean of the differences, Then you add the squared of differences, Then you divide by how many numbers you have in your data set, Then you take the square root of that number to find the standard deviation. media type="custom" key="23021174"media type="custom" key="23020912"Outliers Usually a outliers are numbers that are extremely to high or extremely to low. We can look at a outlier and tell if its a outlier. Well the most obvious way is if a number is way to big or way to small according to your data. You can also can just tell if its a outlier. You may need a calculator for this but if its greater than q3+1.5(Inner Quartile Range). And/or you could do if its less than Q1+1.5(Inner Quartile Range). media type="custom" key="23073642"media type="custom" key="23048126" Quartiles This video also helps me to understand what and how quartiles are. What you quartiles is you put all your data that you have in order least to greatest. Then you find the median of all the numbers. Then you would go to the number before the median and the first number of the set. Then you'll find the median of the lower set. That is called the lower quartile. Then you'll go to the number after the median of all the number and the biggest number of all the data. Then you'll find the upper quartile. Then what you would do ifyou want to find the inner quartile range you subtract the lower quartile and the upper quartile. media type="custom" key="23177556"media type="custom" key="23177584"Data Representation What data representaion is, is just showing your data represented in different ways. For example a whole lot of data representations in math are done in graphs. Like bar graphs, box and whisker plots, scatter plots, and histograms.