Ms. Koenig, I just wanted to thank you for posting this video. I am going back to school after 30 years and my textbook did not clearly describe how to construct this table. It is an online college and the availability of the professor is limited. You do a wonderful job of explaining everything clearly. If an old goat like me can get it, anyone can. Thanks again.
Thank you for the video. I'm taking online classes and I couldn't figure this out. Having someone explain it to me as if I was in class learning the information for the first time really helped out! I understand what to do now :)
you're the best ! my college professor expects us to do it on a calculator but didn't take the time teach us how to use it. so now I'm here learning manually.
Excellent video. I have a practice midterm due today (Statistics) and my actual midterm due next week. This refresher lesson is easier to understand than my text and math videos combined, and was actually fun to watch and learn here. Great job! And thanks. :0)
I'm actually taking AP Statistics right now and i don't understand the explaination of my teacher. After wathching your video i finally understand everything. THANK YOU SO MUCH!!! MORE POWER!!!
@angelone211 You do still use the rules if your data is in decimals. The class width you find by (largest-smallest)/number of classes round up to match the number of decimals as the data. Then start your first class lower limit with the smallest data value, add the class width to that number to get the lower limit of the next class etc. The class boundaries will be one more decimal place than the data.
To approximate the mean if you only have the frequency distribution you: 1) multiply each midpoint by that class frequency for each class 2) add all the answers you got in step 1 3) add all the frequencies 4) divide the number from step 2 by the number from step 3 This is just an approximation of the mean since you didn't use the individual data values but the approximation is still useful.
Hey Mam thank you so much , you really can't imagine how grateful i am you made me understood something i couldn't undrestand more than 5hours in five minutes thank yo again
I've watched two of your videos and they are VERY helpful. You explain very clearly. Might I suggest adding a sequence number in your titles, as I first went to the Frequency Polygon video, but it made little sense until I just used this Frequency Distribution video. Just a thought, but I will subscribe because these were VERY helpful! Thank you!
I just stop solving mine cause our teacher said that the highest limit in the example should be the last in highest limit like in your example 46 was the highest but you put 49 in it. JUST A BIG THANK YOU FOR THIS VIDEO! I thought I'm doing the wrong way. God bless!
I've been trying to decypher my applied statistics book for days. This was immensely helpful. How can something so straightforward be made so difficult... Thanks!
The class width found in this video is for an introductory statistics course. The method used is (highest value-lowest value)/number of class, then round up to the next value that matches the accuracy of the data. Be careful, it is not the normal round to nearest, for this method you round up. This means even if the answer is 6.005 you would round up to 7. If your class uses a more intensive math formula for the class width, follow the rule presented by your professor.
