+0

0
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A company has determined that 1% of the parts it makes are defective. If the company packs a shipment of 5 parts to a customer, what is the probability that :

a) none are defective

b) more than 2 are defective

Mar 19, 2019

#1
+6196
+3

$$\text{Binomial distribution with }n=5,~p=0.01\\ a) P[0]=(1-p)^5 = (0.99)^5 = 0.951\\ b) P[>2] = 1 - P[0]-P[1]-P[2] = \\ 1 - (0.99)^5 - \dbinom{5}{1}(0.01)(0.99)^4 - \dbinom{5}{2}(0.01)^2(0.99)^3 = 9.8506\times 10^{-6}$$

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Mar 19, 2019
#4
+43
0

Thank you!! I started to understand more of how you came up with this formula. I really appreciate your help!! I have definitely taken on something I need help with. I am going to have to find a tutor or someway to get help for this course. I am more than willing to put the time in to learn. Ive been putting time in but im not getting it. Cant believe that guy is bullying me because im reaching out for help!! We should build each other up!! Thank you for all your help.

Jtbreezii  Mar 19, 2019
#5
+1914
+1

Really?! How did that happen? Was it magic, or did you actually visit and review the links I posted for you?

Doing that might give magical-like results, but you should know it’s not really magic.

GA

GingerAle  Mar 20, 2019
#2
+1914
+4

Well now you have four answers, and you are too bloody dumb to know if any of them are correct.

Lets’ see ...

Rom’s answer agrees with CPhill’s, which he posted here: https://web2.0calc.com/questions/could-you-help-me-with-this-please-its-practicing    (When you repeat questions, include the link to you previous posts.)

Rom’s answer is presented in pristine LaTex (not ASCII slop), which probably makes it consistent with your online text (or book), but you are not going to understand Rom’s answer any more than you understood CPhill’s answer. The reasons for this are appended to your previous post.

Keep in mind, if you are too lazy, or put-off, to go back to the prerequisites, you are not going to learn or understand this material. You just are wasting everyone’s time –including your own.

GA

Mar 19, 2019
#3
+43
-1

No need for all the harshness and bullying guy!! I'm on here asking for help but I do see how you made this a waste of time. Now correct me if I'm wrong but this site people come to to get answers. Anyone can come to this site and post questions as well as answers.. Nowhere does it state that you are obligated to even click on my question. Muchless read it or even answer it!! So with that being said.. Instead of wasting our time you can simply move on along, leave me alone, quit wasting MY time!!

Jtbreezii  Mar 19, 2019
#7
+1914
+2

Now correct me if I'm wrong but this site people come to to get answers. (sic)

Well ... yes, it is. I’m sure it wasn’t the creator’s original intent, but over time, it’s morphed into a homework answer and a defacto “cheating” forum. Diligent students can certainly learn from this, but for most, it presents only an illusion of knowledge, with no real substance of learning.

... Anyone can come to this site and post questions as well as answers..  Nowhere does it state that you are obligated to even click on my question. Muchless read it or even answer it!! (sic)

Yep; you’ve summed it up in three generalized, poorly punctuated, sentences.

Instead of wasting our time you can simply move on along, leave me alone, quit wasting MY time!!  (sic)

Yes, I could simply have moved on, and you could have simply pursued further explanation on your original post rather than repeatedly posting the same question with the expectation that someone will present a solution that magically gives you an understanding of the prerequisite concepts.

Your comments on your pervious post indicated a sincere desire to learn this material.   So I spent the time to present detailed information on where you can learn the techniques to solve that particular type of statistical problem and where to learn the prerequisite concepts.  That took about 60 minutes to research, verify, and post –well longer than the five minutes needed to just answer this simple question.   (No comments about this; just bitching about harsh bullying.)

I then see this post, with your repeated question and a lament about three different answers.  I then knew with certainty that the time I invested in responding to your question was wasted.   So I trolled your lame and lazy ass. That pissed you off, so I at least recovered something from my investment of time.

BTW, I am not a guy.   Most children –even very young children know this. But maybe you lack the prerequisites for this subject, too.  Do you need links that will help in gender recognition?  ...Meh, that’s just a waste of time.

GA

GingerAle  Mar 20, 2019
edited by GingerAle  Mar 20, 2019