ere to search A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one particular customer for the past 20 months. Use the given data to answer parts (a) and (b). 327 528 497 377 322 347 487 434 559 518 494 357 461 523 553 417 521 382 475 364 (a) Determine the standard deviation and interquartile range of the data. S= (Round to two decimal places as needed.) IQR= -(Type an integer or a decimal.) (b) Suppose the month in which the customer used 327 minutes was not actually that customer's phone. That particular month the customer did not use their phone at all, so 0 minutes were used. How does changing the observation from 327 to 0 affect the standard deviation and interquartile range? What property does this illustrate? The standard deviation and the interquartile range What property does this illustrate? Choose the correct answer below. Empirical Rule Resistance Dispersion Weighted Mean O At

Find the standard deviation (rounded to the nearest unit) for the data indicated. Test Score              Frequency 90   1         80   4         70   8         60   5         50   3         40   2         30   1         0   4         Is there an easy way to get it?

Find the range, sample standard deviation and inter-quartile range (IQR) of the following data set. 35 42 42 63 71 79 84 85 96 98 range =  (Please enter an exact answer.)   standard deviation (ss) =  (Round to one decimal place.) IQR =  (Please enter an exact answer.)A new number, 139, is added to the data set above. Find the range, sample standard deviation and IQR of the new data set.range =  (Please enter an exact answer.) standard deviation =  (Round to one decimal place.) IQR =  (Please enter an exact answer.)Which measure of spread is less affected by the addition of the extreme observation? standard deviation Range IQR

The grades for 30 students on the most recent exam are given in the data table below: Round your answer to 2 decimal places as needed 70 70 80 80 70 60 90 80 80 80 60 70 70 70 70 90 70 70 80 90 60 90 70 60 90 70 06 90 90 80 What is the mean score for the exam? What is the median score for the exam? What is the standard deviation for the exam?