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Mathematics 8 Online
OpenStudy (howard-wolowitz):

Measuring question / median and mean

OpenStudy (welshfella):

sorry - i cant see the first part of the questions

OpenStudy (howard-wolowitz):

OpenStudy (howard-wolowitz):

Hows that?

OpenStudy (welshfella):

dont know the first few numbers are cut off

OpenStudy (welshfella):

hold on - i got it now

OpenStudy (howard-wolowitz):

k

OpenStudy (welshfella):

for the first one Add up all the numbers and divide by 7 to get the mean for the median arrange them in ascending order. The median will be the middle value ( in this case the 4th value)

OpenStudy (welshfella):

what do you get ?

OpenStudy (welshfella):

3+4+6+7+9+9+11 = ?

OpenStudy (howard-wolowitz):

so 7?

OpenStudy (howard-wolowitz):

for the mean

OpenStudy (howard-wolowitz):

then I dont know what you mean by saying 4th for median

OpenStudy (welshfella):

yes 0 i mean the 4th number in the list 3 4 6 7 9 9 11

OpenStudy (howard-wolowitz):

oh so it would be mean= 7 and median = 7

OpenStudy (welshfella):

the middle number = 7 that is the median

OpenStudy (welshfella):

yep

OpenStudy (welshfella):

so here the mean and the median are equal

OpenStudy (howard-wolowitz):

cool, power OS the welsh minds

OpenStudy (howard-wolowitz):

now the second question is gonna be over our heads

OpenStudy (welshfella):

yea well we need to keep the median and the mean equal to 7 This will give us a total of 8 numbers and the only way to make the mean and median equal is to add another 7

OpenStudy (welshfella):

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