Standard Deviation Answers

The graph represents the distribution of the lengths of play times, in minutes, for songs played by a radio station over one hour.

The graph shows a distribution of data.

Grace is looking at a report of her monthly cell-phone usage for the last year to determine if she needs to upgrade her plan. The list represents the approximate number of megabytes of data Grace used each month.700, 735, 680, 890, 755, 740, 670, 785, 805, 1050, 820, 750

The histogram shows a city’s daily high temperatures recorded for four weeks.