Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °

You are not logged in.

- Topics: Active | Unanswered

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,569

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi;

The Quincunx is nice! It is easy to understand so you are done.

About the skewed data, left and right skewed have a strange meaning. Left skewed means the tail is on the left, yours shows it the other way around.

I do not why it is like that in statistics, to me your viewpoint is more intuitive but

http://en.wikipedia.org/wiki/Skewness

http://www.itl.nist.gov/div898/handbook … stogr6.htm

A quick fix is change the word skewed to bunched. Which is probably better for what you are trying to show.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**MathsIsFun****Administrator**- Registered: 2005-01-21
- Posts: 7,569

"Bunched" sounds nice!

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi;

Or batched ( batched? ), bunchy ( bunchy?) grouped, collected, condensed, conglomerated, amalgamated, aggregated, concentrated...

Better stick with bunched.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 7,182

hi MathsIsFun,

I love it. I've posted the link to some teachers I know.

Quincunx still running. HHmmmmm! :)

Bob

Children are not defined by school ...........The Fonz

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**robinsonov****Member**- Registered: 2011-07-01
- Posts: 6

Hi there i am new to this forum, my question is how do i post my questions to the forum?

Thanks

Robinsonov

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi robinsonov;

Welcome to the forum!

Go in the Help Me section and start a new thread there. Please read these guidelines.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**robinsonov****Member**- Registered: 2011-07-01
- Posts: 6

Can someone help me with step by step solution to this decimal problem?

15/7 15 divided by 7

Thanks

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**robinsonov****Member**- Registered: 2011-07-01
- Posts: 6

Hello there how are you guys doing? i need more help with the solution to the below problems

Please if possible i would like to see the step by step solution to the problem.

Thanks

Robinsonov.

Convert the following fractions to decimals in

1.0021=?

__

1:201 =?

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi robinsonov;

Please start your own thread from now on in "Help Me" that way you will get faster help.

Here is how I do it. Start with the obvious fraction.

Now you have to get a whole number over another whole number.

If you moved the decimal point in 1.0021 four places to the right

you would have 10021 Whatever you do to the top of the fraction you have to do to the bottom. So

You can now make sure that it is in lowest terms.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**robinsonov****Member**- Registered: 2011-07-01
- Posts: 6

Thanks for your kind effort.

bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi;

For the second one you have to use a trick.

1:201 =? I am assuming you mean 1.20101010101...

1.2 = 6 / 5 so

Let's work with the .0010101010...

Say:

Multiply both sides by 1000.

The .01010101010... is just 10 x.

Solve for x.

So that is your answer.

I leave the checking to you.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline

**robinsonov****Member**- Registered: 2011-07-01
- Posts: 6

Thanks

bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 97,076

Hi robinsonov;

Your welcome. I thought the second question is a little bit passed where you are. Or maybe I am missing something obvious, anyway that is how I do it.

**In mathematics, you don't understand things. You just get used to them.**

**If it ain't broke, fix it until it is.**

Offline