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Please help asap, ty!!

 
RainbowPanda  Apr 14, 2018
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 #1
avatar+85726 
+2

P (L l R)  =  P(L and R) / P(R)

Rearranging this, we have

 

P(R)  =  P(L and R)  / P(L l R )

P(R)  = 0.03  / 0.0625

 

Second one

P(Single l Has Pet )  =  16 / (16 + 24)  =  16/40   =  2/5  = .40

P (Single l Has No Pet )  = 12 /  (18 + 12)  = 12 / 30  = 2/5  = .40 true

P (Married l Has No Pet )  = 18 / (18 + 12)  = 18 /30 = 3/5  = .60

P(Married l Has Pet )  = 24 / ( 24 + 16)  = 24 / 40  =  3/5  = .60  true

 

RP....I believe that   C  is correct for the last one....for instance

If P( Q)  = .30     and P (T)  =  .40

Then

P(Q l T)  =  P (Q and T ) / P(T)  =   .12/ .40  = 0.3

But

P( T l Q )  = P(Q and T) / P(Q)  = .12 / .30  = 0.4

 

 

cool cool cool

 
CPhill  Apr 15, 2018

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