![]() We want to just focus on the bluegill population so that we can examine the variability between individuals of the same species. So, the data set that I’m using for this analysis has information for several species of fish. ![]() n507_w1150 by BioDivLibrary is licensed under CC-BY 2.0 This process will differ based on the spreadsheet program you are using so be sure to try this out before having your students try!īluegill (also known as “sunnies” or “perch”). ![]() This can be read by most spreadsheet programs so it is a great file type to use when compatibility is an issue! To use with Google Sheets, we uploaded the file to our Google Drive and then opened the file using Sheets. The “.csv” means comma-separated value this is a text file in which the data in a line is separated into columns by commas. However, you can choose to download any data set you choose. This data set has length and weight data for several related species of freshwater fish. The data set we’re going to analyze is available here. Now, the interesting thing about the mode is that a data set might one mode, multiple modes, or no modes! It all depends on the frequency that a data point shows up. To determine this value, you have to count the number of times each number shows up in your data. The mode is the number that shows up most in a data set. ![]() However, with data sets with even numbers of samples, you have to average the two middle numbers and that becomes the median. For data sets with odd numbers of samples, the median is easy – you just take that middle number. This is determined by ordering data set from largest to smallest, and then selecting the number in the middle.
0 Comments
Leave a Reply. |