anonymous
  • anonymous
Suppose you draw two tennis balls from a bag containing seven pink, four white, three yellow, and two striped balls. What is the probabililty of getting yellow and pink balls with replacing?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
one yellow and one pink, you mean?
anonymous
  • anonymous
yeah
anonymous
  • anonymous
ok hold on a sec

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anonymous
  • anonymous
k
anonymous
  • anonymous
100 out of 256, if the order of the yellow and pink doesn't matter
anonymous
  • anonymous
can you write out how you got that?( like the different steps under one another)?
anonymous
  • anonymous
well first you need to find the total possibilities. Which is 16x16, because there are 16 total. that is 256. The possibility of getting pink or yellow is 7+3=10. So 10x10=100/256. Also, I forgot, you can simplify. 100/256. Divide by 4. 25/64.
anonymous
  • anonymous
thanks:)
anonymous
  • anonymous
no problem
anonymous
  • anonymous
ok.... so whats the probability of getting a pink one and a striped one without replacing?
anonymous
  • anonymous
without replacing, the total possiblities changes. instead of 16x16, its 16x15. 240. pink and striped is 7+2 9 total. but because there is no replacing it is not 9x9, it is 9x8. 72. So 72 over 240. Simplify. Divide by 4. 13/60.
anonymous
  • anonymous
thanks! i have a lot more though! can you stay and help me?
anonymous
  • anonymous
ok
anonymous
  • anonymous
YAY! thanks so much! ok so still doing this, whats the probability of getting two pink balls with replacing?
anonymous
  • anonymous
7x7=49. Remember 256 possibilities for replacing. so 49/256. Can't simplify that.
anonymous
  • anonymous
any more?
anonymous
  • anonymous
YEAH A LOT!

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