The sum of all the hours spent on screens is 0 + 7 + 8 + 8 + 10 + 11 + 14 + 15 + 17 + 17.5 + 18 + 18 + 18 + 20 + 30 = 201.5
There were 15 kids surveyed, so the mean number of hours spent on screens is 201.5 / 15 = 13.4 hours.
Therefore, the mean number of hours spent on screens for the kids the director surveyed is 13.4 hours.
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}
The mean number of hours spent on screens by the kids that the director surveyed is ____ hours.
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1 answer