Math Is Fun Forum

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

-.526 is a better answer. There is a pretty good calculator online.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

It's going to be monday soon where u are. Do you work, go to school or retired?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Hi survival;

It is Monday for you already. None of those actually. All I will say is that I have always been the luckiest person on the earth.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

hey, it is time to sleep. i will try and check in tomorrow evening. Thank you so much.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

hey, what do u mean "none of those?"

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Exactly that, none of those.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

Bob

Administrator

Registered: 2010-06-20

Posts: 10,627

Re: Standard normal curve

hi survival,

Those of us who who have benefited from bobbym's mathematical wisdom over the years think he is the God of Mathematics.  Therefore he does not work, is certainly not at school and will never retire.  I cannot think of another explanation that fits the facts.

Good morning bobbym,

How are you today?

survival:  On your other post about standard normal curves it sounds as if you'd like some background to how it all works.  Say if this is so and I'll prepare a longer reply.

Bob

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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
Sometimes I deliberately make mistakes, just to test you!  …………….Bob

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Hi Bob;

Those of us who who have benefited from bobbym's mathematical wisdom over the years think he is the God of Mathematics.  Therefore he does not work, is certainly not at school and will never retire.  I cannot think of another explanation that fits the facts.

Could be that he is just an idiot. And a lazy one at that.

How am I? Humbled! gAr just showed me how little I know. It is funny how a person can be riding high and then mathematics just slaps him right down. Like being hit in the face by a wet towel.

Anyway, good afternoon.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

Speaking of being hit with a towel, Algebra did that to me last semester. Do any of you know anything about Algebra? I have a lot of homework.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Hi survival;

Yep! What do you need?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

Is there an easier way to compute Algebra? I have just started on this.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Hi survival;

Algebra is computation with variables like arithmetic is computation with numbers. Never speak about math, do it! Post a problem and I will help you.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

okay, then you will get a lot of algebra. It is probably simple stuff to you.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Not really. But it does get a little easier the more you do.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

Such as B = hm

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

I took it last semester and it's the only c I ever had.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

A,B,C, your in the top 3!

What do you want to do with:

B=hm?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

haha, that was the little algebra problem
here's a longer one:
5x - 9x + 6 = -2x + 6
how do you determine which one is the one you use to subtract from both sides?

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Hi;

First clean that up a little bit.

5x - 9x = - 4 x So we have:

Add 2x to both sides to cancel the -2x on the right.

Subtract 6 from both sides.

Divide both sides by -2. Can you finish now?

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

Solve for h. B = hm

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

Your answer on the other one was exact of course.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

Solve for h. B = hm

You have to get h by itself. The quickest way is to divide both sides by m.

On the right the m's cacel on the top and bottom.

Now just switch them.

On the other problem you have to complete the last step.

---

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

hm. There are so many steps to this. I am only on number 7 so far.

bobbym

bumpkin

From: Bumpkinland

Registered: 2009-04-12

Posts: 109,606

Re: Standard normal curve

The steps are numerous but after a while you will see they are repetitive. It is like adding 2, 2 digit numbers and then adding 2, 3 digit numbers. It is more work but not any more difficult.

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In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

survival

Member

Registered: 2011-04-03

Posts: 655

Re: Standard normal curve

It also makes my head hurt, but it is necessary. You are a good math person.