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Mathematics 19 Online
OpenStudy (anonymous):

Of all the Sunny Club members in a particular city, 25% prefer swimming on weekends and 75% prefer swimming on weekdays. It is found that 10% of the members in that city prefer swimming on weekends and are female, while 55% of the members in that city prefer swimming on weekdays and are female. what is he probability of a club member picked at random is female, given that the person prefers swimming on weekends?

OpenStudy (math_man21):

yes

OpenStudy (anonymous):

hey, think you could help me?

OpenStudy (math_man21):

sure

OpenStudy (math_man21):

my last one asked it i was single so dont ask

RhondaSommer (rhondasommer):

well what is the probabability of female prefers swimming on weekends?

OpenStudy (anonymous):

are you? hahah jus kiddin... thats weird

OpenStudy (math_man21):

ikr

RhondaSommer (rhondasommer):

im tryin to help you. help me by actually answering please. take your conversation to a PM line if need be.

OpenStudy (math_man21):

not necc

OpenStudy (anonymous):

0.10/0.55 right? sorry i was trying to figure it out

RhondaSommer (rhondasommer):

if 55 percent of the females enjoy weekdays more; all you have to do is subtract 100 by 55 :)

RhondaSommer (rhondasommer):

and that will be your percentage :)

OpenStudy (math_man21):

yeah wooooow ronda u smart

OpenStudy (math_man21):

Rhonda* sorry plz dont hurt me

OpenStudy (anonymous):

really?

RhondaSommer (rhondasommer):

really what?

RhondaSommer (rhondasommer):

really is that my answer? or; Really @math_man21

OpenStudy (math_man21):

Rhonda* sorry plz dont hurt me

OpenStudy (anonymous):

cause my choices are: 0.19 0.20 0.24 0.40

RhondaSommer (rhondasommer):

wait a sec...

OpenStudy (math_man21):

hi

OpenStudy (anonymous):

it's probability

OpenStudy (math_man21):

*runs away*

RhondaSommer (rhondasommer):

i know. i did math wrong. #dyslexia is a problem

OpenStudy (anonymous):

oh it's fine.. :)

OpenStudy (anonymous):

0.1/0.24 = 0.4 right?

RhondaSommer (rhondasommer):

well. thats not the problem

OpenStudy (welshfella):

probability is not my strong point but I think you can use Bayes theorem to do this.

OpenStudy (anonymous):

are you sure? I mean, 25% swim on weekends and 10% of them are female. so, if we divide we get 40%

RhondaSommer (rhondasommer):

okay sure but thats not an answer

OpenStudy (anonymous):

not too sure about that... if i could, it would have to me

RhondaSommer (rhondasommer):

oh wait. yes it is... smh

OpenStudy (anonymous):

alright great,, thanks for the assistance rhonda

RhondaSommer (rhondasommer):

im sorry :( i thought i knew somethin and my brain saw too many letters

OpenStudy (anonymous):

it's fine :)

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