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).330 439 543 432 389 499 498 493 335 488 418 420 529 480 483 513 481 545 526 547 (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 330 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 330 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 A. Resistance B. Empirical RuleC. Weighted MeanD. Dispersion
