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Unit 8 Test ACC Study Guide Test Date: Friday May 20, 2016 Topics: All Topics from Unit 1, Unit 2, Unit 3, Unit 4, Unit 5, Unit 6, and Unit 7 Statistical Questions Creating Line Plots, Frequency Tables and Histograms Calculating Mean, Median, Mode Describing Center, Variability and Shape Box and Whisker Graphs The Mean Absolute Deviation (MAD) Circle Graphs To study, you should complete odd numbered problems from the textbook so you can check in the back of the textbook. Selected answers begin on Pg. SA1. Vocabulary: All vocab from Units 1, 2, 3, 4, 5, 6 and 7 Histogram Mean Absolute Deviation (MAD) Relative Frequency Cumulative Frequency Skewed Data Quartiles and Extremes Measures of Center (mean, median, mode) Measure of Variability (range, interquartile range, MAD) Box and Whisker Graph Practice: Be sure to include labels and title for all graphs and to show all work. The following are 6th grade Math scores on the Unit 7 Test: 87, 93, 94, 72, 68, 75, 92, 89, 88, 89. Write a statistical question that you could ask to obtain the above data. Calculate the measure of center for the data (mean, median, and mode). Which measure or center best represents the data? Explain fully. Calculate the measures of spread for the data (range and mean absolute deviation). Which measure of spread best represents the data? Explain fully. Create a frequency table that includes cumulative and relative frequency for the data above. Create a histogram for the data above. Is the histogram approximately symmetrical or skewed? What does this tell you about the data? Create a box-and-whisker plot for the data above. Include all work to calculate the medians and quartiles. What is the interquartile range (IQR)? The following table shows the results of a 6th grade poll. Color Number of Students Blue 3 Red 12 Purple 6 Green 3 Write a statistical question that you could ask to obtain the results above. Create a circle graph of the data. Show all work. Create a line plot for the number of letters in a student’s name if 5 students participated, the mean was 9 letters, the mode was 10, and the range was 8 letters.