anonymous
  • anonymous
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...
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
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.
anonymous
  • anonymous
probability was never my strong point, but I could take a guess at this.
anonymous
  • anonymous
you guys have any ideas of how to go about solving this?

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
\[p(wp)=p(wp|Gs1).P(Gs1)+p(wp|Gs2).P(Gs2)\]
anonymous
  • anonymous
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
anonymous
  • anonymous
p(wp|Gs1)=80% p(wp|Gs2)=35% p(Gs1)=75% P(Gs2)=90%
anonymous
  • anonymous
is the periods in between multiplications symbols? @RaphaelFilgueiras
anonymous
  • anonymous
tihs is the probability of win a point if she gets first server
anonymous
  • anonymous
a player is allowed two serves each time in tennis. sorry i forgot to mention that.
anonymous
  • anonymous
the secons time Gs2
anonymous
  • anonymous
P(wp) is the probability to win a pint
anonymous
  • anonymous
the question just says find the P when she is serving. it doesnt when wether is first or second. what shoudl i do?
anonymous
  • anonymous
that formula take accounting the two cases,its impossible she gain a ponit without serving
anonymous
  • anonymous
have you played tennis before?
anonymous
  • anonymous
or know how the serving works?
anonymous
  • anonymous
oh ok. the problem also says draw a tree diagram. i will post here.
anonymous
  • anonymous
nope.
anonymous
  • anonymous
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.
anonymous
  • anonymous
|dw:1334986543479:dw|
anonymous
  • anonymous
|dw:1334997467614:dw|
anonymous
  • anonymous
try mulitplying the circled numbers together, then the squared ones, then adding them together,.
anonymous
  • anonymous
ok, that makes alot more sense. thanks for help! really aprreciate it
anonymous
  • anonymous
i got 67.8%
anonymous
  • anonymous
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

Looking for something else?

Not the answer you are looking for? Search for more explanations.