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                                    Lesson 1.6 %u2022 Measuring Center 59describe this graph as skewed to the right? Justify your answer. 302520151050FrequencyCell phoneIn personInternet chatFacebookTelephone(landline)TextmessageMethod of communication26. Points scored (1.4) Here are the number of points scored by teams in the National Football League (NFL) during one week of games. 29 22 10 45 31 13 34 13 15 24 16  10 24 21 20 27 7 10 10 17 37 14  12 29 31 17 34 37 20 10 12 10 (a) Make a stemplot of these data using split stems.  (b) Describe the shape of the distribution. Lesson 1.6 Measuring Center L E A R N I N G TA R G E T S %u2022 Find and interpret the median of a distribution of quantitative data. %u2022 Calculate the mean of a distribution of quantitative data. %u2022 Compare the mean and median of a distribution, and choose the more appropriate measure of center in a given setting.  Several years ago, managers for the city of Flint, Michigan, decided to save money by using water from the Flint River rather than continuing to buy water sourced from Lake Huron. Soon after, Flint residents noticed that the water coming out of their taps looked, tasted, and smelled bad. Some residents developed rashes, hair loss, and itchy skin. Authorities insisted that drinking water from the Flint River was safe.  In the year following the change in water source, city officials measured lead levels in water samples collected from 71 randomly selected Flint dwellings. Here are the data (in parts per billion, ppb). 69 Figure 1.8 is a dotplot of the data. JIM WATSON/AFP/Getty Images%u00a9 Bedford, Freeman & Worth Publishers. For review purposes only. Do not distribute. 
                                
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