Ashton surveyed some of the employees at his company about their cell phone habits. from the data, he concluded that most employees at his company use cell phones primarily for business. for which sample could this generalization be valid?

B. Some managers and some sales executives selected at random.

Step-by-step explanation:

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.