Question

A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of 334 499 347 379 389 one particular customer for the past 20 months. Use the given data to answer parts (a) and (b). 395 524 373 331 509 332 487 491 466 441 519 501 359 478 403 sts (a) Determine the standard deviation and interquartile range of the data. (Round to two decimal places as needed) IQR(Type an integer or a decimal.) (b) Suppose the month in which the customer used 334 minutes was not actually that customer's phone. That particular month the customer did not use their phone at enti all, so 0 minutes were used. How does changing the observation from 334 to O affect the standard deviation and interquartile range? What property does this illustrate? cess The standard deviation and the interquartile range What property does this illustrate? Choose the correct answer below. O Weighted Mean tion Click to select your answerls).

Answer 1