Maths h/w help!!

[demon_69]

This is a very stupid question, but my minds gone blank, just a maths question here.
How the hell do you work out the;

Mean
Median
Mode

When you have a set of data (e.g. 24,25,28,26,38,27,48,46,35,37,45,24,34)

Anyone know? my minds gone blank!!

 

[hq56]

mean = average
median = err
mode = err

 

[demon_69]

lol, thanks.
1 down 2 to go.

 

[Portmanteau]

I'm not sure which is which, but one is the number than occurs the most frequently. For the other one, you put the numbers in order and get the middle one.

 

[Broadbridge_20]

mean = average
median = middle number
mode = most frequently occuring

 

[Portmanteau]

The one that occurs most frequently is the mode, i.e. in 1, 2, 3, 3, 4, 4, 4 and 5 - the mode is 4.

The one in the middle is the median, i.e. in 1, 3, 6, 10, 65 - the median is 6.

 

[demon_69]

Ahhhhh thanks guys, cheers. Trust the dees fan to be in with the answer first

But thanks to all who helped, i might just pass yet

 

[Fred]

Originally posted by Inferno_03
Ahhhhh thanks guys, cheers. Trust the dees fan to be in with the answer first

But thanks to all who helped, i might just pass yet

Not on that form.

 

[BomberGal]

Alright, people beat me to it, but I still want my say.

To help you remember it:

Mean - well, it's really common knowledge that it's the average.
Median - sounds kinda like medium, so it's the medium (middle) number.
Mode - Has the same start - 'mo' - as most, as in most occuring.

OK, so my mind works in funny ways, and remembers things strangely when I first learn them. It gets weirder, you should hear how I first learnt a few basics in Chemistry.

 

[Nic]

Fer chrissakes, get ya textbook out and look it up, ya lazy sod.

I mean that in the nicest possible way.

 

[Gridlock'd]

Heres one for all you maths wizards!

Solve:

(Sin A + Cos A) squared = 1 + 2 Sin A Cos A

 

[red+black]

Originally posted by Inferno_03
This is a very stupid question, but my minds gone blank, just a maths question here.
How the hell do you work out the;

Mean
Median
Mode

When you have a set of data (e.g. 24,25,28,26,38,27,48,46,35,37,45,24,34)

Anyone know? my minds gone blank!!

Order the numbers first:
24,25,28,26,38,27,48,46,35,37,45,24,34
becomes
24,24,25,26,27,28,34,35,37,38,45,46,48

n = 13
SUM(n) = 437

mean = 437 / 13 = 33.62
median = (13+1)/2 = 7th number in the ordered set = 34
mode = 24

just remember, the median will be the mean of the two middle numbers where n is even

huh? say you have 10, 10, 15, 20, 25, 25. thus n=6

median = (6+1)/2 = 3.5th number = (15+20)/2 = 17.5

and the mode can be a set of numbers. in my example, the mode is 10,25.