MediaWiki API result

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            "552": {
                "pageid": 552,
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                "title": "Regression Lab In StatCrunch",
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                        "*": "'''Lab 3: Regression, Correlation and Outliers\n* We are going to work with the small diamonds data set again, accessible here: [[Media:diamonds3K.xlsx|diamonds3K]] sampled from a larger data set with [http://ggplot2.tidyverse.org/reference/diamonds.html Codebook].\n* We are going to look at the three dimensions of diamonds and how they covary: length (x), width (y), and height (z).\n* Make a scatter plot for (x versus y) and separately for (x versus z).\n* One of the conditions for correlation and regression is the \"No outliers condition.\"\n* '''Do you see outliers in the plots?'''\n* Click on an outlier to turn it pink.\n* '''Is the outlier an outlier for the ''other'' relationship? (x versus y) versus (x versus z)'''.  The dot on the other scatter plot also turns pink.\n* Look at the row in the data set for each outlier.  To find the row, press one of the arrows on the pink box that appeared on the lower left.\n* Can you tell if the data were recorded wrong or if the diamond really had those dimensions?  Consider what x, y, and z mean and remember you also have a measure of the diamond's weight (carat). Plot scatter plots with carat and x, y or z, and '''discuss'''.\n* '''Repeat for the other most extreme outliers.'''\n* Plot the Residuals versus \"X-Values\" (explanatory variable), a histogram of the residuals, and a QQ-Plot of the residuals. '''Where does the outlier(s) show up? With the outliers removed, is a simple-linear regression analysis appropriate?'''\n* '''Report the correlation coefficient and regression line with the outliers and without the outliers (see below).'''\n* To do the analyses without the outliers, use Stat, Regression, Simple Linear to Save Residuals, then use a \"where\" function to restrict the data to points with small enough residuals."
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            "576": {
                "pageid": 576,
                "ns": 0,
                "title": "STEM Tutoring",
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                        "*": "[[Image: Pexels-katerina-holmes-5905702.png|thumb|Photo by Katerina Holmes from Pexels.]]\n\nI tutor most STEM subjects, including Statistics, Data Science, Mathematics, Computer Science, and Introductory Physics.  (STEM stands for Science, Technology, Engineering and Mathematics.)\n\n1. During a 15-minute free consult, you'll describe what you need and I will offer approaches to meet your needs and the rates. You'll let me know if that works for you and I'll answer your questions. \n\n2. After the consult, the client will periodically email me their questions to be addressed. This could be photos or scans of a book describing the problems you're working on.\n\n3. With each email, I will provide a free assessment of the set of questions, which will include the following:\n(1) How many different \"topics\" requiring separate appointments are needed to address all the questions (see pay scale, typically one topic per assignment per class),\n(2) How much time I will need to prepare for each appointment (charged on the same scale), and\n(3) For advanced questions, how confident I am that I already know each solution.\n\nFor all questions, I will aim to \"teach students to fish\" rather than \"give students a fish,\" with reference to the famous aphorism whereby the latter feeds you for a day, whereas the former feeds you for a lifetime.  I use the Socratic method to help students solve problems on their own.\n\nFor advanced questions, if I know the general approach, we can work through it together, which could be helpful on its own, or you can pay me in advance to think through the steps and provide more polished tutoring.  \n\nIf how to solve a problem isn't readily apparent, in the free assessment, I may provide a written brainstorm of different approaches that might help get you started (if I can generate such a brainstorm easily).  You can then decide if you want me to explore any approaches on my own (for pay) or in a Zoom session with you, (also for a fee). \n\nAfter the free assessment, the client will schedule any appointments and arrange for payment in advance using an online service such as PayPal or Venmo."
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