What is the interquartile range of the following set of sample data? 1    3    9    10    10    11    15    17   18    20   10 9 19 8

4.  A set of data has a five number summary of:  10   30   35   40   70 Which of the following is the inter-quartile range (IQR) of this data set? Group of answer choices 35 15 10 60

13 Find the median for the following group of data items. 25, 22, 21, 20, 26, 23, 19, 21   The median is _______. ​(Type an integer or a​ decimal.)

Find the mean, median, and mode for the given set of ungrouped data. 3, 3, 3, 3, 4, 4, 5, 5, 5, 5 mean = median = Identify the mode(s). O 1,2 O 3,5 1,3 O 2,5 оо

14 2. The test scores, of 16 students are listed below: 44, 46, 51, 57, 60, 63, 65, 70, 75, 76, 85, 87, 90, 94, 95, 97. (b) Find the first quartile of the above data, 87 88.5 58.5 57

4. Given the sample data in the table below: 12 10 15 19 23 5 12 10 12 19 10 19 34 19 19 15 a) Determine the mean, median, and mode of this data. Please show your work! 5 12 b) Determine the range and inter-quartile range of this data. Please show your work!

20. Consider the following data: 40, 45, 55, 65. ?, ?, 75, 75, 78, 83 Then use the suitable measure to calculate the average and dispersion for the given data.