# Thread: Do my Stats HW 2\$ per question

1. ## Do my Stats HW 2\$ per question

@Niku ・(￣∀￣)・
Answers must be correct to receive the money.
Show work

1.
The length of life of a washer is approximately normally distributed with mean of 3.1 years and a standard deviation of 1.2 years.?
if this type of washer is guaranteed for one year what fraction of original sales will require replacement?

2.
The time it takes you to come to school is approximately normally distributed with a mean of 45 minutes and a standard deviation of 3minutes?
what time must you leave home in the morning so that you are 95% sure of arriving at school b 9:00 AM

2. Way to have some integrity.

You're going to fail your test, by the way.

3. Originally Posted by Disturbed
Way to have some integrity.

You're going to fail your test, by the way.
I have an A in the class I aced my Midterm
I just don't feel like doing homework I am doing a essay right now, procrastination dude partied to much this week

4. Originally Posted by Disturbed
Way to have some integrity.

You're going to fail your test, by the way.
The way I read this made me laugh so hard just now

5. lol . why me D: . but nvm then .
1)μ = 3.1
σ = 1.2
standardize x to z = (x - μ) / σ
P(x < 1) = P( z < (1-3.1) / 1.2)
= P(z < -1.75) = 0.0401 ( 4 percent)
(From Normal probability table)

2)From the normal probability table, P( z < 1.645) = 0.95
z = (x - μ) / σ
1.645 = (x-45) / 3
x = (3)(1.645) + 45
x = 49.935
You must leave 49.94 minutes before 9:00 AM (approximately 8:10 AM)

wasn't that hard really . lol

6. ## The Following User Says Thank You to Niku ・(￣∀￣)・ For This Useful Post:

Poison (11-16-2014)

7. Do you really give money for this questions?

8. Originally Posted by xaviar
Do you really give money for this questions?
yep last question i gave 5\$

9. Originally Posted by xaviar
Do you really give money for this questions?
no or that would be scamming. really how stupid can you be

10. somebody do my calculus homework for me

it's over riemann sums and the Fundamental theorem of calculus.

11. edit: wow double post GG

12. Originally Posted by Kyeran

no or that would be scamming. really how stupid can you be
I am sorry, I cannot help that I am stupid.

13. Originally Posted by Auxilium
somebody do my calculus homework for me

it's over riemann sums and the Fundamental theorem of calculus.
If you pay me. I'm learning calc bc right now.
FTC and Reimann sums aren't that bad.

14. Originally Posted by TheEnlightenedOne

If you pay me. I'm learning calc bc right now.
FTC and Reimann sums aren't that bad.
If you do it make sure that your proficient.

15. Originally Posted by xaviar

If you do it make sure that your proficient.
you're.
I'm also pretty good at grammar.

16. Originally Posted by TheEnlightenedOne

you're.
I'm also pretty good at grammar.
Hahaha. That is great. I just wanted to make sure.