The director of a local Parks and Recreation department is interested in the number of hours kids spend outside each week. She surveys a group of 19 kids in her town and asks them how many hours they spent outside last week. Her results follow. What was the median number of hours spent outside for the kids she surveyed?
{0,10,15,4,70,15,18,20,6,8,10,12,15,18,20,2,50,40,10}
The median number of hours spent outside by the kids that the director surveyed was ---- hours.
The median is the middle number when the numbers are arranged in numerical order.
When the numbers are arranged in ascending order, we get: {0, 2, 4, 6, 8, 10, 10, 10, 12, 15, 15, 15, 18, 18, 20, 20, 40, 50, 70}.
Since there are 19 numbers, the median will be the 10th number when the numbers are arranged in ascending order.
Therefore, the median number of hours spent outside by the kids surveyed is 15 hours.