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anonymous
 one year ago
Help with probability?
anonymous
 one year ago
Help with probability?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@uri @perl @ganeshie8

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I will help :) What's the problem

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Choose a row and column and compare P(A  B) with P(B  A). Explain what each probability means in the context of the situation and data you collected.:

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0Alright do you know how to find the probability of this? Or is that what you need help with?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I'm just kinda lost on what column to choose.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And where to go from there.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, how about Nikon professional photographers to Canon professional photographers?

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0One second please :)

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0It's fine m8 :)

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0I'm just refreshing my memory on probability lol

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0Well you chose the Professional column right?

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0This question is busting my brain ._. @acxbox22 @surjithayer @sleepyjess @dan815 @geny55 @gabylovesu @campbell_st @Nurali @robtobey

undeadknight26
 one year ago
Best ResponseYou've already chosen the best response.0Sorry mate I thought I could do it but I forgot everything about probability :/

perl
 one year ago
Best ResponseYou've already chosen the best response.1Would you like help with this?

perl
 one year ago
Best ResponseYou've already chosen the best response.1you want to compare P(AB) and P(BA) First lets define A and B

perl
 one year ago
Best ResponseYou've already chosen the best response.1Let A = professional B = Nikon brand Once you define A and B, then it forces the complements to be: A' = non professional B' = the other brand Canon

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay got it. So how would I label that with P(A  B) and P(B  A)?

perl
 one year ago
Best ResponseYou've already chosen the best response.1P(AB) means the probability of event A given that you know event B has already occured. On the table this means we only look at event B's row or column

perl
 one year ago
Best ResponseYou've already chosen the best response.1P( AB) = P( professional  Nikon brand )

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh so I don't need to put any numbers in?

perl
 one year ago
Best ResponseYou've already chosen the best response.1The given part means that we only look in the row 'Nikon'

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh okay! So P(Profesional  Nikon) and P(Nikon  Profesional)?

perl
 one year ago
Best ResponseYou've already chosen the best response.1P( AB) = P( professional  Nikon brand ) we look only in the Nikon row. http://prntscr.com/7kwtse therefore P(AB) = 8/10

perl
 one year ago
Best ResponseYou've already chosen the best response.1the `` symbol means 'given' .

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0And then vise versa for P(B  A)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay, what about P(A∩B) with P(A∪B)?

perl
 one year ago
Best ResponseYou've already chosen the best response.1P( BA) = P( Nikon brand  Professional ) http://prntscr.com/7kwury 8/12

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Got it! What about my question above?

perl
 one year ago
Best ResponseYou've already chosen the best response.1Okay, what about P(A∩B) = 8/20 P(A∪B) = (8 + 2 + 4) / 20

perl
 one year ago
Best ResponseYou've already chosen the best response.1P(A∩B) : probability of professional `and` Nikon http://prntscr.com/7kwx9w = 8/20 P(A∪B) : probiablity of professional `or` Nikon http://prntscr.com/7kwxo7 = (8 + 2 + 4) / 20

perl
 one year ago
Best ResponseYou've already chosen the best response.1You can think think of it in terms of intersection of row and column P(A∩B) http://prntscr.com/7kx0gv

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ohh okay! So I said... Compare P(A∩B) with P(A∪B), and explain what each probability means in the context of the situation and data you collected.: P(A∩B) = 8/20 (probability of professional and Nikon). Here, were only looking at the eight professional Nikon photographers. P(A∪B) = (8 + 2 + 4) / 20 (probability of professional or Nikon). Here, we’re using data from the professional column of Canon and Nikon plus Nikon’s two nonprofessionals.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay great! Thank you so much! Only three more homework assignments till I graduate!

perl
 one year ago
Best ResponseYou've already chosen the best response.1A∩B is also called `A intersect B` or `A & B ` A∪B is called `A union B` or `A or B `

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Alright, it's in my notes now. Thank you!
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