JayDelV
  • JayDelV
There are 40 volunteers for the research study on the Power Pill. Each subgroup of the study will contain 10 participants. Determine how many ways these participants can be selected and explain your method.
Mathematics
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
(40*39*38......*30)*4
Vocaloid
  • Vocaloid
use the combination formula nCr = n!/(r!*(n-r)!) where n = 40 and r = 10
JayDelV
  • JayDelV
Can you explain the ! to me?

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Vocaloid
  • Vocaloid
! means factorial examples: 5! = 5*4*3*2*1 3! = 3*2*1 and so on...
anonymous
  • anonymous
How are you asking such question and you do not know what does factorial mean. Why do you go to school man stay at home
JayDelV
  • JayDelV
I'm taking a virtual course in a foreign country right now and I'm on a deadline so I'm rushing through this. I don't need your slick remarks because clearly you are seeing me trying to learn how to do this.
anonymous
  • anonymous
How old are you?
JayDelV
  • JayDelV
None of your concern.
JayDelV
  • JayDelV
@Vocaloid I can't find the answer to the solution
JayDelV
  • JayDelV
Equation *
anonymous
  • anonymous
Sorry for bothering you but i cant endure fool in maths its not in my control sorry bro
anonymous
  • anonymous
Fools*
JayDelV
  • JayDelV
Grow up

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