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mr.luna
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Suppose while playing tennis, Venus gets her first serve in 75% of the time. when she gets her first serve in, she wins a point 80% of the time...
 2 years ago
 2 years ago
mr.luna Group Title
Suppose while playing tennis, Venus gets her first serve in 75% of the time. when she gets her first serve in, she wins a point 80% of the time...
 2 years ago
 2 years ago

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mr.luna Group TitleBest ResponseYou've already chosen the best response.0
if she misses her first serve, her second serve goes in 90% of the time. whe this happens, she wins the point on her second serve 35% of the time. find the probability that venus wins a point when she is serving.
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
probability was never my strong point, but I could take a guess at this.
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
you guys have any ideas of how to go about solving this?
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
\[p(wp)=p(wpGs1).P(Gs1)+p(wpGs2).P(Gs2)\]
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
what i would do would be: \[.75*.80 + (1  .75*.80)*.9*.35\] the first part being the probability of her winning her first serve and the second of her winning her second serve given a result of her first serve. again its been forever since I've done any probability
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
p(wpGs1)=80% p(wpGs2)=35% p(Gs1)=75% P(Gs2)=90%
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
is the periods in between multiplications symbols? @RaphaelFilgueiras
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
tihs is the probability of win a point if she gets first server
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
a player is allowed two serves each time in tennis. sorry i forgot to mention that.
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
the secons time Gs2
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
P(wp) is the probability to win a pint
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
the question just says find the P when she is serving. it doesnt when wether is first or second. what shoudl i do?
 2 years ago

RaphaelFilgueiras Group TitleBest ResponseYou've already chosen the best response.0
that formula take accounting the two cases,its impossible she gain a ponit without serving
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
have you played tennis before?
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
or know how the serving works?
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
oh ok. the problem also says draw a tree diagram. i will post here.
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
in tennis you have two attempts to get in a good serve with each serve. IF you miss the first one you move onto the second.
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
dw:1334986543479:dw
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
dw:1334997467614:dw
 2 years ago

alexandercpark Group TitleBest ResponseYou've already chosen the best response.1
try mulitplying the circled numbers together, then the squared ones, then adding them together,.
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
ok, that makes alot more sense. thanks for help! really aprreciate it
 2 years ago

mr.luna Group TitleBest ResponseYou've already chosen the best response.0
i got 67.8%
 2 years ago

amogh Group TitleBest ResponseYou've already chosen the best response.0
So, i) She could either get her first serve in and get a point (0.75 * 0.80) ii) She could else get her first serve wrong, second serve right and point on her second serve ( 0.25 * 0.90 * 0.35) Sum up i) and ii) 0.6 + 0.079 That's 67.9% , same as what you got! So guess its right! :D
 2 years ago
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