# Square root

• Dec 14th 2008, 07:25 PM
Rob
Square root
Hi, I set up the problem but I am not sure how I would solve it.

0.123 ± 1.96 √(0.123)(0.877) / 1000
• Dec 14th 2008, 08:07 PM
mr fantastic
Quote:

Originally Posted by Rob
Hi, I set up the problem but I am not sure how I would solve it.

0.123 ± 1.96 √(0.123)(0.877) / 1000

I suggest using a calculator. How accurate does the answer need to be?
• Dec 14th 2008, 08:34 PM
Rob
I have tried it on the calculator but I was wondering how I would enter it on my calculator. Is there a certain order I need to enter it?
• Dec 14th 2008, 08:37 PM
mr fantastic
Quote:

Originally Posted by Rob
I have tried it on the calculator but I was wondering how I would enter it on my calculator. Is there a certain order I need to enter it?

Evaluate the square root. Then use BODMAS.
• Dec 15th 2008, 08:09 AM
Bruce
Quote:

Originally Posted by mr fantastic
Evaluate the square root. Then use BODMAS.

BODMAS? I thought it was BIDMAS?
• Dec 15th 2008, 08:19 AM
Gaz
Quote:

Originally Posted by Bruce
BODMAS? I thought it was BIDMAS?

Order or Indices they're both the same thing.
• Dec 15th 2008, 03:23 PM
mr fantastic
Quote:

Originally Posted by Bruce
BODMAS? I thought it was BIDMAS?

Of related interest: Unit 4 Section 3 : Order of operations
• Dec 15th 2008, 06:27 PM
nzmathman
Funny that....I learnt it as BEDMAS! (E = exponents)
• Dec 16th 2008, 12:05 AM
Prove It
Quote:

Originally Posted by nzmathman
Funny that....I learnt it as BEDMAS! (E = exponents)

BEDMAS, BIDMAS, BODMAS, PEDMAS, PIDMAS and PODMAS are all acceptable.

That's if you say Brackets or Parenthesis, and Exponentiation, Indices or Order.