The line plots show the number of hours two groups of teens spent online last week. how does the data compare for the two groups of teens? the 16- to 18-year olds spent about the same hours online, on average, as the 13- to 15-year olds. the mode for the hours spent online for the 13- to 15-year olds is greater than the mode for the hours last week for the 16- to 18-year olds. the median value for the hours spent online for the 13- to 15-year olds is greater than the median value for the hours spent online for the 16- to 18- year olds. the range of hours spent online for the 13- to 15-year olds is greater than the range of hours spent online for the 16- to 18-year olds.