what is the mean, median, mode of data : a) 25,21,38,29,32,44,38,21,16 4:47 pm

- anonymous

what is the mean, median, mode of data : a) 25,21,38,29,32,44,38,21,16 4:47 pm

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- katieb

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- anonymous

Whatcha need? I can help. You've got the median and mode already, yeah?

- anonymous

yea but i need another help too

- anonymous

25,21,38,29,32,44,38,21,16
Helps to put them in order first:
16, 21, 21, 25, 29, 32, 38, 38, 44
From here, the mean is the average. So take all of the numbers, add them up and divide them by the number of numbers you have in your list (in this case nine).
Mode is the number that shows up the most. In this case you have two numbers that each show up twice.
Median is the number in the middle of the sequence. Start from the outsides and cross em off one by one, one from the left, one from the right, until you reach the center number. This one is easy because there are an odd number of numbers, you will get one number for the median.
Hope that helps.

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## More answers

- anonymous

so the median would be 58?

- anonymous

The median, or middle number is 29.
The MEAN, which means average, without doing any math, I can tell you it is not 58.
Add all the numbers together and then divide by the number of numbers in the sequence. There are nine numbers in this sequence. Add them and divide by nine.

- anonymous

29

- anonymous

29 and 1/3.

- anonymous

(16 + 21 + 21 + 25 + 29 + 32 + 38 + 38 + 44)/9.
1 2 3 4 5 6 7 8 9

- anonymous

sorry i gave the wrong number ..so for instance i rearranger the numbers in to median such as , 36,38,44,53,58,71,74,81,82,94 .. so the median would be 58 ??

- anonymous

Also, I just read chat. There is such a thing as having 2 modes.

- anonymous

the median is 58+71/2

- anonymous

In that case, you have 10 numbers so there will be two numbers in the center. The median is those two numbers added and then divided by 2.

- anonymous

yay i got it :) thankyou

- anonymous

Np.

- anonymous

Could you help me as well?

- anonymous

I am almost out of time, but if it's in my knowledge, I will do my best to help.

- anonymous

Here's the equation -> 4x^2+20x-24=0 and I've gotta factor and solve. I'm able to get the first step, and afterwards I dunno where to go.

- anonymous

So let's take out 4 first. Notice how the coefficients and constant can all be divided by 4 so we can do:
4(x^2+5x-6)=0

- anonymous

If you distrubute that, you'll notice that it is the same as 4x^2+20x-24=0

- anonymous

I get that much.

- anonymous

Awesome.

- anonymous

We are going to leave that four alone for now. I'll explain it later.
Can you factor (x^2+5x-6)?

- anonymous

Remember, the formula looks like (x+?)(x+?).

- anonymous

It'd be

- anonymous

(x+6)(x-1)

- anonymous

The two ? should ADD to 5, the MIDDLE term.
The two ? should MULTIPLY to -6, the LAST TERM (aka the constant).

- anonymous

Great, that is exactly right.

- anonymous

i need help

- anonymous

So, if (x+6)(x-1) = (x^2+5x-6), can you agree that 4(x^2+5x-6)) = 4 (x+6)(x-1) ?

- anonymous

So the four is allowed to stay out there ;) All remains balanced.

- anonymous

Are we clear on this?

- anonymous

the table shows the prizes awarded in jason's school funraiser : price value : 100,50,10 , number of prices 2,4,10 find the mean median mode

- anonymous

Yeah. Do you have to go now?

- anonymous

I have to change classes, but I have computers in there too ;) It might be a couple minutes before I can come back.

- anonymous

The bell just rang, so I will be right back in maybe 10.

- anonymous

Okay. Tell me later what age you are if you can.

- anonymous

the table shows the prizes awarded in jason's school funraiser : price value : 100,50,10 , number of prices 2,4,10 find the mean median mode hellllpppp

- anonymous

Okay, I can, give me a minute

- anonymous

:) please

- anonymous

Eh

- anonymous

I'm confused by the number of prices part

- anonymous

what part you go confused?

- anonymous

Well, did you mean number of prizes, maybe?

- anonymous

yes thats exactly what i meant

- anonymous

Okay so, to solve for the three..beginning with median..

- anonymous

yh?

- anonymous

I think you needa arrange the numbers in order from lowest to highest.

- anonymous

how

- anonymous

k for median i got 31.25 ,

- anonymous

I believe you solved for the mean.

- anonymous

Noooo i dont get mean and mode and thatss y i need your help

- anonymous

Mkay, so for mean: you must add up all the values and divide by the number of values listed.

- anonymous

The mode is the most common number, so it'd be 10.

- anonymous

And then the median is what's in the middle: med=mid; you could remember it that way, I suppose.

- anonymous

You have six values, which is an even number, so there isn't really a centered value, so in this case, you select the two values in the middle and take their average.

- anonymous

i still dont get mean :S is it 8?

- anonymous

10 + 50 + 10 + 2 + 4 + 10 = Your answer. So use a calculator to add those values up first.

- anonymous

u missed 100 i guess

- anonymous

My bad, typo, it would be 100, yeah.

- anonymous

176

- anonymous

/2?

- anonymous

Good, now divide by how many values/numbers are listed.

- anonymous

So it'd be six.

- anonymous

29.3

- anonymous

Correct. That's the mean. The average. Now you needa find the median.

- anonymous

how am i gonaa??

- anonymous

2, 4, 10, 10, 50, 100

- anonymous

See how there isn't a number directly in the middle?

- anonymous

So you'd either take the average of the two middle-ish numbers, and if they're the same, they're both considered the median.

- anonymous

If it were 2, 4, 7, 9, 50, and 100, the median would be 9.

- anonymous

Kidding, 8.

- anonymous

yea i told u in the beh=ginig itss 8 lol but back of the book it shows 10

- anonymous

Do you need to show your work? If you have answers in the back of the book, you just need to jot down the steps that give you those answers.

- anonymous

i said back of the book its sayss 10 for the median.. but i got 8 .. so i dont kno whats the right answer

- anonymous

Tell me how you got eight.

- anonymous

i added the number of prices which is 2+4+6=16/2

- anonymous

Median is middle, remember that. Med=mid.

- anonymous

So you don't even need to do any calculating, you just need to determine which value/number is in the center.

- anonymous

oh i got it :)

- anonymous

And I hafta go soon, I have a math exam tomorrow morning that I need to study for, but I want you to solve for mean, median and mode of the example equation I'm gonna give you.

- anonymous

Very nice guys, good deal. I got a little waylaid but everything looks to be in order ;)

- anonymous

thankyou soo much :)good luck for ur exam

- anonymous

Dude, IParke, can you make sure this fella knows what he's doing? I dunno if he's got it down yet, so if you've got time, give him random scenarios to work with ie finding mean, median and mode and all. Can you do that?

- anonymous

If he needs help, I got him covered.

- anonymous

MSW, would you like a practice set of numbers?

- anonymous

hahahahhahhaa :P *this fellow *was referring to me ??? :P

- bahrom7893

lol why the heck do ur questions have over 80 replies all the time??

- anonymous

Please go away if you're not gonna assist. That's a rhetorical question, anyway.

- anonymous

And yes MSW, I was referring to you.

- bahrom7893

i do assist actually.. anyone needs help?

- anonymous

lol !! well ... i felt bad

- anonymous

Why's that?

- bahrom7893

And Aubburrito please don't tell me what to do.

- anonymous

coz im a girl :P lol hahah

- anonymous

Fella goes for either gender, I believe.

- anonymous

oh comonnnn :P

- anonymous

That's why I chose it! Geeeeesh. Tough crowd.

- anonymous

haha ! okay

- anonymous

WAIT. No I wrote he and him. Asalksdjfljs

- anonymous

And this is why kids pick on me at school. x]

- anonymous

lol !! wher u from?

- anonymous

Eh. I live in Michigan. I hate it here.

- bahrom7893

lol now i regret responding here... im getting 15 notifications per minute..? u can chat in group chat? lol

- bahrom7893

haha, whatever..

- anonymous

lol

- anonymous

ur funny bahroom :) nice to seeee u again

- anonymous

Can you delete posts on here?

- anonymous

me?

- anonymous

Anyone

- bahrom7893

I can't but aubburritto check ur other question..

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