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hockeychick23
 one year ago
Using the tree diagram, you just constructed and make a table showing the probability distribution of getting zero, one, or both questions right by guessing. (i attached the tree diagram)
hockeychick23
 one year ago
Using the tree diagram, you just constructed and make a table showing the probability distribution of getting zero, one, or both questions right by guessing. (i attached the tree diagram)

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hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1@welshfella @kropot72

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1I got: Probability of getting zero questions right by guessing: .5626(.75)= .42195 Probability of getting one question right by guessing: (0.75)(.1875)= .140625 (0.25)(.0625)= 0.015625 .140625+0.015625= .15625 but I'm not sure if i did it correctly, can someone check my answer please?

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2the number on the right most nodes are the total probabilities already

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1oh ok so the probability of getting zero right is .5625, getting one right is .25+.1875=.4375 and getting both right would be .1875?

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433151671567:dw

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2yes the probability of getting zero right is .5625,

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2the probability of getting 1 right is the sum of the two probability of the nodes in the tree that are exactly 1 right ansewer

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1yea i got .25+.1875=.4375

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2ie P(1) = P(wr) + P(rw)

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.20.25 is the probability that the first question is right, but we want to add the probabilities that exactly one question is right

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1oh sorry so its .1875+.0625= .25

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433152150638:dwadd these

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1and then both right would be .1875

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2**error in diagram dw:1433152335528:dw

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2there is only one leaf on the tree that has both right answers P(rr) =

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1yea that leaf says .0625

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2dw:1433152413453:dw

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1i think i drew my diagram wrong when i constructed it

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2why do you say that? it seems right to me its multiple choice (four options) two questions

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1oh i just flip flopped the wrong and right on the second leaf

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2if we add up all the probabilities P(0) = 0.5625 P(1) = 0.1875+0.1875 = 0.3750 P(2) = 0.0625 P(0)+P(1)+P(2) = 1

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1oh awesome! so if i made it into a table like it was asking could i just draw it like this:

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2wcheck that last entry in the table again

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1oh its not .1875? I thought that was what it was

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2for both right: 1/4 * 1/4 =

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2nope 0.375 is for exactly 1 right

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1sorry i typed it incorrectly, this is the table

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.2now to be sure check the sum all the probabilities .5625 + .375 + .0625 =

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1.5625+.375+0.0625=1

hockeychick23
 one year ago
Best ResponseYou've already chosen the best response.1:) thanks so much!!
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