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lana66690 [7]
3 years ago
14

A group of 8 students was asked, "How many hours did you watch television last week?" Here are their responses: 7, 20, 8, 15, 10

, 17, 7, 13 Find the mean and median number of hours for these students. If necessary, round your answers to the nearest tenth.
Mathematics
2 answers:
cestrela7 [59]3 years ago
5 0
Well, lets find the Median first. Putting the numbers in order from least to greatest (7,7,8,10,13,15,20) then count from each side to find the middle number (15). To find the Mean you will add all of the numbers together and divide by how many numbers there are so 7+7+8+10+13+15+20=80. We then do 80/7=11.4, rounded will be 11.0.

Mean: 11
Median: 15

I hope this helped!
Musya8 [376]3 years ago
3 0
To find the mean you add up all the numbers and divide that amount by the amount of numbers. Which looks like this:
7 + 20 + 8 + 15 + 10 + 17 + 7 + 13= 97
97 divided by 8 = 12.125

The mean is 12.125.

To find the median you first need to put the numbers in order and then try to find the number in the middle. If there is two numbers in the middle those two numbers are still the median:
7, 7, 8, 10, 13, 15, 17, 20, 

The median(s) are 10 and 13. 
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