Chp. 9 Statistics Review

Master statistics! Practice mean, median, mode, range, IQR & MAD with this review worksheet.

Find each value from the data set:12, 19, 20, 21, 22, 33, 34, 35, 40, 40, 49 Refer back to google slides from weeks 5 and 6 for more detailed explanations!Mean: averageMedian: middleMode: most frequentRange: max-minminimum: smallestmaximum: largestMAD: average of the distances from the averageQ1: median of lower half of numbersQ3: median of upper half of numbersInterQuartile Range: range between Q3 and Q1 Mean (Round to the tenth) 29.5 Median 33 Mode 40 Range 37 Minimum 12 Maximum 49 Q1 (First quartile) 20 Q3 (Third Quartile) 40 InterQuartile Range 20 Mean Absolute Deviation (Round to tenth) 9.8 Here are five dot plots that show the amounts of time that five sixth grade students took to get to school. Match each dot plot with the appropriate median and IQR (interquartile range). Refer back to google slides from weeks 5 and 6 for examples. Interquartile range is the range between Q3 and Q1. Median: 6; IQR: 3 Median: 15; IQR: 6 Median: 12; IQR: 6 Median: 13; IQR: 6 Sort the statistics values into the two categories based on what they tell you about the data set. Refer back to google slides from weeks 5 and 6 for help! Tells you how spread out the numbers in the data set are. Range InterQuartile Range Mean Absolute Deviation Tells you a number value in the data set or is a specific placement in the data set. These are used in the 5 number summary Median Q1 Q3 Minimum Maximum Order the steps for finding the Mean Absolute Deviation. Refer back to google slides Week 6 Day 1 for help! Step 1 Find the Mean of the data. Step 2 Find the distance from the mean to each data point. Step 3 Find the absolute value of each distance. Write the distances as all positive numbers. Step 4 Find the Mean of the positive distances. Fill in the blanks to find the Mean Absolute Deviation of the data set. Refer back to google slides from Week 6 for help and examples! The data set is: 6,5,4,7,6,5,7,8,5,6,5,8. The mean of the data is 6. The listof positive distances from each data point to the mean is: 0, 1, 2, 1, 0, 1, 1, 2, 1, 0, 1, 2. The average of those distances, or the Mean Absolute Deviation is: 1.