Question
The director of a local summer camp is interested in the number of hours kids spend on screens each week. He surveys a group of 15 kids at his camp and asks them how many hours they spent on screens last week. A list of his results follows. What is the mean number of hours spent on screens for the kids he surveyed? Round your answer to the nearest tenth.
{0,7,8,8,10,11,14,15,17,17.5,18,18,18,20,30} (1 point)
The mean number of hours spent on screens by the kids that the director surveyed is
hours.
The mean can be calculated by adding up all the hours spent on screens and then dividing by the total number of kids surveyed.
0 + 7 + 8 + 8 + 10 + 11 + 14 + 15 + 17 + 17.5 + 18 + 18 + 18 + 20 + 30 = 201
201 / 15 = 13.4
Therefore, the mean number of hours spent on screens by the kids that the director surveyed is 13.4 hours.