Please find the range sample standard deviation and inter quartile range IQR of the following data set 28 32 36 48 48 53 54 65 78 87 range 59 standard deviation s 19 2 QR 29 range standard deviation Please enter an exact answer A new number 370 is added to the data set above Please find the new range sample standard deviation and IQR of the new data set Please show your answer to one decimal place Please enter an exact answer Please enter an exact answer Please show your answer to one decimal place QR Please enter an exact answer Which measure of spread is less affected by the addition of the extreme observation Range IQR O standard deviation