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The Homework Thread #6 ~ Need a Little Help? Ask Here.
Please post all homeworkrelated questions on this thread. This thread is for getting help when get stuck with researching for an essay, solving a math problem, finding the capital of a country...etc. Basically, the thread is for questions where you are only looking for the right answer or a few responses at the most. If you are looking for a wide variety of input, such as getting as many responses as possible for a survey or asking for general ideas for starting a project, you are welcome to start a new thread on it. From the previous thread: Quote:
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ღ Carol 


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Lemurian, thanks so much for answering my question on the previous thread!
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Ju 


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SilviahPaulian : Yes, it is french :
"le petit déjeuner" = breakfast "fenêtre" = window "clé" = key This is the translation __________________
9 Bunny N° 181 Thanks kate, SOD : I love Ron... he's so boring... ~ RP + VL ~ 


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Quote:
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9 Bunny N° 181 Thanks kate, SOD : I love Ron... he's so boring... ~ RP + VL ~ 


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LOL!!! French is pretty hard!
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Adam Lambert and Allison Iraheta .Shelly. Icon: CharlieandClaire 


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Quote:
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9 Bunny N° 181 Thanks kate, SOD : I love Ron... he's so boring... ~ RP + VL ~ 


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Is there anyone good in math? i have an exam tomorrow, and I'd call one of my friends but they don't get this exercise either
There are two machines, Machine X and Machine Y, and they both produce Keys. Machine X produces 60% of the keys and Machine Y produces 40% 2% of all the key's produces by Machine X can't be used and 0,9% of all the key's produced by Machine Y can't be used. At the and of the day, the boss picks 5 keys randomly  What's the chance they can all be used  What's the chance only one of them can be used  What's the chance one or more can be used Please? I'd be grateful for the rest of my life because I can't fail this exam. __________________



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I have to do some hw soon.
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ღBarney&Robinღ"Robin Scherbatsky, I love you so damn much." 


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Quote:
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"I'd lose an award to her any day" ~ Carrie eoty♥fvotyMiranda ~ "She told me 'long time coming'" 


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Quote:
 2% of 60% is (2/100)x(60/100)=120/10000=1,2%  0,9% of 40% is (0,9/100)x(40/100)=36/10000=0,36% so in total the (1,2%+0,36%)=1,56% of the keys can't be used.  What's the chance they can all be used? The joint probability of a series of events is P=P(E1) x P(E2)...x P(En) In this case on 5 events the probability is (100%  1,56%) x (100%  1,56%) x (100%  1,56%) x (100%  1,56%) x (100%  1,56%) = 92,44%  What's the chance only one of them can be used? It's the joint probability of "one can be used" and "4 can't be used" so: (100%  1,56%) x 1,56% x 1,56% x 1,56% x 1,56% => (5,83 e8 )^5  What's the chance one or more can be used? It's 100% the chanche that all of them can't be used so: 100% [(1,56%)x(1,56%)x(1,56%)x(1,56%)x(1,56%)]=100%  9,239e10= almost 1... Thank you anyway __________________



#13  
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ha ok see me and my friend were doing it way different but i get it. Thank god i dont have to take math anymore.
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"I'd lose an award to her any day" ~ Carrie eoty♥fvotyMiranda ~ "She told me 'long time coming'" 


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i have it 6 hours a week and unfortunately no choice to drop it
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Quote:
Not a fan of math. __________________


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