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# A group of children were asked how many hours a day they spend watching television.

wrote...
Posts: 69
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7 months ago
 A group of children were asked how many hours a day they spend watching television. 1. A group of children were asked how many hours a day they spend watching television. Determine the mean, mode, and median and graph it using a histogram. Please provide explanation. Attached file Thumbnail(s): You must login or register to gain access to this attachment. Read 136 times 12 Replies
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Answer verified by a subject expert
bio_manbio_man
wrote...
Educator
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Posts: 30343
7 months ago

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7 months ago
 thank u so much how about the median and mode?
wrote...
Educator
7 months ago
 Oh yeah!Median:Add 1 + 4+ 7 +3+2+1 = 1818 / 2 = 9median is between the 9th and 10th observation.1 + 4 + 7 = 11The third row has cumulative frequency of 11The third row passes the 9th and 10th results, so the median must be in there.Median is 2-3 hours.As is the mode, it's the one that repeats most often.
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7 months ago
 I understand the 18/2 and also apparently you are supposed to do 18+1/2 = 9.5th term.How would you find the 9.5th term with the following, you still choose the 9th term?0.5, 1.5, 1.5, 1.5, 1.5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, 2.5, 3.5, 3.5, 3.5, 4.5, 4.5, 5.5another thing part of the written solution there were 1, 5, 12, 15, 17, 18 beside the number of kids column and I was confused on where they were found would you possible know?thanks
wrote...
Educator
7 months ago
 Quote from: bio_man (7 months ago)Median is 2-3 hours.I pointed out the median occurs between 2-3 hours. However, I was mistaken after looking at it further.The median occurs between 2 and 3 hours, so 2.5.Now, when working with grouped data, use a modal interval in place of a mode. The modal interval is the interval with the greatest frequency, namely 2-3 hours.I will be making a video out of this question today and sharing it with you
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7 months ago
 oh ok thank you so much for doing that
wrote...
Educator
7 months ago
 Here's a custom video:Please share and like, thanks
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7 months ago Edited: 7 months ago, kyal
 thanks so much for the video it really helpedPost Merge: 7 months agosrry I have one more question if you were asked to mark the measures of central tendency on the histogram it would look something like this and even though the 2.7 isn't exactly 2.5 but it is still quite close, you would consider it as a perfectly symmetric distribution or uniform? Attached file Thumbnail(s): You must login or register to gain access to this attachment.
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Educator
7 months ago
 It doesn't look symmetric to me.In a symmetric distribution such as the uniform distribution, the mean, median, and mode will all be equal.This is a non-symmetric or skewed distribution, where the mean, median, and mode differ.
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7 months ago Edited: 7 months ago, kyal
 thats exactly what I thought, negatively distribution, but for some reason my teacher had mentioned today that it was uniform distribution and I wasnt sure why :/ most likely made a mistakealthough mode and median are the only ones that are the same
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Educator
7 months ago
 I mean I'm just following the definition, right? They need to all be equal, and they aren't.
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7 months ago
 only 2 of them are equal but just like u said it still wouldnt be symmetric distribution but yes my teacher may have made a mistakethanks for the help