Data Visualizations

Instructions

300 wordsCollect some data from your daily life, at least 30 points of data. It could be the number of emails you receive each day, your daily footsteps, minutes spent at the gym, calories consumed, commute time, time spent on the phone, body temperature, weather data or come up with a survey question (Do you like dogs? How many cousins do you have? What color is your car?) and go ask some people! the possibilities are endless.Choose some visual way to display your data, and calculate descriptive statistics to describe the center of the data and its spread. Describe the method you used to collect your data. If it was a sampling method try to classify it as one of the methods described in chapter 1. Post your data set and your visualization as well as the descriptive statistics (chart from statpowers.com). Explain why you chose this particular visualization (bell shape, right scewed, left scewed or uniform), and why you think it is effective. What pattern emerges, and what story does the picture tell? Also please explain why you chose the statistics you did to measure center and spread.

Answer

I sort this data in ascending order to determine skewness type. Further, I plotted this in a clatter plot to visualize the data and obtained the following figure:This data is skewed to the left. The excel function SKEW(data ) returns a negative skew, i.e., -1.151. I use a systematic sampling method. I stood on the street and collected the value of every seventh person who passed on the street (Kingman & Reuter, 2008). In the case the seventh person refuses to give their data, as some did, I would assume the person is counted and start counting against to obtain the seventh values. The mean value of this data is 3.2, while its variance and standard deviations are 5.406896552 and 2.325273436, respectively. The mode of this data is 2, which presents seven entries while the median is 2.5....
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