Problem: Calculate the interquartile range, quartile deviation and coef- ficient of quartile deviation from the following data. Weight Number of Person : 40(42 45 50 54 55 : 3 6. 5. 8 7 6

Which of the following measure the average deviation of a data set? 1.  sample range   2.  sample interquartile range   3.  sample coefficient of variation   4.  sample standard deviation   5.  sample variance

A sample of blood pressure measurements is taken from a data set and those values (mm Hg) are listed below. The values are matched so that subjects each have systolic and diastolic measurements. Find the mean and median for each of the two samples and then compare the two sets of results. Are the measures of center the best statistics to use with these data? What else might be better? Systolic: 122 137 158 114 156 143 99 112 115 152 Diastolic: 61 51 76 73 55 58 74 60 87 59 Find the means. The mean for systolic is mm Hg and the mean for diastolic is mm Hg. (Type integers or decimals rounded to one decimal place as needed.) ***

Solve the following problem without using excelThat is, solve step by stepCalculate the mean median mode and standard deviation of the data 21,30, 27, 30, 25