Question 195615: Someone, please help! I am about to pull my hair out.
Find the mean, median, and mode for the following set of data which shows the number of pages per article in a random sample of magazine articles.
6 7 5 4 7 5 5 7
8 5 3 6 8 9 5
Found 2 solutions by Edwin McCravy, jim_thompson5910:
Answer by Edwin McCravy(20056)   (Show Source):
You can put this solution on YOUR website! Someone, please help! I am about to pull my hair out.
Find the mean, median, and mode for the following set of data which shows the number of pages per article in a random sample of magazine articles.
6 7 5 4 7 5 5 7
8 5 3 6 8 9 5
The mean is just the ordinary average that you learned
back in elementary or middle school.
To find the median and the mode list the numbers in order
from smallest to largest:
3 4 5 5 5 5 5 6 6 7 7 7 8 8 9
There are 15 numbers. 15 is an odd number of numbers, so the
median is the one that is right in the middle of the list.
Remember it by: "The median of a highway is in the middle."
3 4 5 5 5 5 5 6 6 7 7 7 8 8 9
The number right in the middle is 6.
(If there had been an even number of numbers, you would have
had to average the middle two)
The mode is the number that occurs more than any other, if
there is one, that is, the number that occurs most.
(Remember it by: the first two letters of "mode" are "mo" and
the first two letters of "more" and "most" is also "mo".
3 4 5 5 5 5 5 6 6 7 7 7 8 8 9
As you can see there are more 5's than anything else, so 5
is the mode.
Edwin
Answer by jim_thompson5910(35256)  (Show Source):
You can put this solution on YOUR website! First sort the numbers into ascending order (from least to greatest):
3,4,5,5,5,5,5,6,6,7,7,7,8,8,9
To find the mean, add up all of the numbers and divide the sum by the number of numbers (which in this case is 15).
So the mean is 6
----------------------------------
To find the median, count off about 7 spaces(it's close to half of the size of the list) until you hit the middle number. Now count count off about 7 spaces from the end of the list until you hit the middle.
3, 4, 5, 5, 5, 5, 5,  , 6, 7, 7, 7, 8, 8, 9
Median=6
So the median is 6
Note: the mean does not always equal the median
----------------------------------
To find the mode, simply look for any repeating numbers. If there is one number that occurs more frequently than any other number, then that number is the mode.
Since 5 repeats itself 5 times (which is more frequent than any other number), the mode is 5
So the mode is 5
|
|
|
