thank you so much for this information my add maths textbook shows how to do it but I didn't understand shit..I come here and 2 mins into the video and I now understand the stem and leaf diagram thank you so much...
Ancient knowledge can reveal so many answers to so many mysteries. In this case, the mystery is mathematics. And the ancient knowledge, is from 8 years ago.
thankkkk youuu smmm im soo grateful rn!!!! thanks for spending your time explaining and helping youve helped student soo much and i hope you know that!!!!
Stem & Leaf is one of the easiest topics in maths so that makes it hard to get confused in the first place. There are many great maths teachers on this platform. Hegarty & Wright would be in my top 3 for starters. If you haven't heard of them just pick a random topic (or a GCSE past paper) & they will be near the top of the search.
Great video bro. It helps a lot but I think you were wrong about the skewness of the data. It supposed to be skewed to the left not to the right. Construct a box plot using the five number summary for a clear picture of the skewness
@anna Tan, for exact even amount of numbers given, the median, is literally the middle number, there are exceptions when there are uneven amount of numbers given does not have an exact shown middle number, for those types of sets, add up the middle values and divide by 2. for when the amount of numbers given does not have an exact middle number add up the middle values and divide by 2.
@Malsa Muj sure as long as it is true, it would help if the terms you use are misleading in the diagram and you properly defined those terms to what you mean to get rid of possible confusion and to make everything easy to understand. we are not supposed to do fractions=the numberator+the denominator, instead if need be you should put 3/6ths of 76 is 36,since 13*6=78 and 72/6=12 and 12*3=36. you should be doing this kind of specifying when the values of total or some amount you have equals 76 and you would like to represent it as a fraction.
if its in between 15 and 16 then there will be the same amount of numbers on either side of the median, whereas, if between 14 and 15 then there are more numbers on the right of the median than on the left of the median
Is it skewed right or left? I was told if the tails were left, it was skewed left and if they were right, then it was skewed right. I am a novice so please clarify. Thank you.
If it's tails off to the left we say it is negatively skewed as it tails off in the negative direction. If it fails to the right we say that is positively skewed. Hope this helps.
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This helped me so much cos I missed a ton of school and I missed the lesson on this and this helped me so much I was so confused now I'm so relieved that I get it thanks so much for this vid
don't you count along 15 from each side because there is 30 number so the mode would be 35. We've done this in class and the teacher said if numbers appear the same amount of times like 44, 44 and 55, 55 then the mode would be 44 and 55
another method for the range is n ( no. of data ) which in this case is 15 + 1 ÷ 2 which is 8 method : n + 1 ÷ 2 and to find the place you can count the answer you got ( 8 ) and you'll get : ( answer down below )
we get the numbers on the left of the diagram from the order of things to calculate, i.e: 1. range 2. mode 3. median 4. interquartile range we get the rest of the numbers from the sets and in this video the guy put 1 digit of a 2 digit number number and put it on the right of the black line. it is wrong to cancel 1, 2 digit numbers and only put the first number, everyone is supposed to write the whole number on the right of the line after cancelling it from the set of data. the line was printed on it, you can put the line there through the software called word and print it off.
