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The pill is 99.9% effective when used PROPERLY
Posted on: May 17, 2019 at 15:05:58 CT
Spanky KU
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See the WebND link below)
For the math see the 2nd link:
"..if two events A and B are independent, the probability of both occurring is P(A and B) = P(A) x P(B). If you use both a condom and the pill they work independently, because if one method fails it has no impact on the other. That means the failure rate of the combined condom and pill method is the product of their separate failure rates. For perfect use of the male condom and pill, that’s 0.02 x 0.003 = 0.00006, or 0.006%. In other words, the combined method is over 99.99% effective when used perfectly...."
There is no way to ADD a condom to the use of the pill and get less effective...
https://www.webmd.com/sex/birth-control/birth-control-pills#1
https://www.mathscareers.org.uk/article/statistically-safe-sex/
For the math see the 2nd link:
"..if two events A and B are independent, the probability of both occurring is P(A and B) = P(A) x P(B). If you use both a condom and the pill they work independently, because if one method fails it has no impact on the other. That means the failure rate of the combined condom and pill method is the product of their separate failure rates. For perfect use of the male condom and pill, that’s 0.02 x 0.003 = 0.00006, or 0.006%. In other words, the combined method is over 99.99% effective when used perfectly...."
There is no way to ADD a condom to the use of the pill and get less effective...
https://www.webmd.com/sex/birth-control/birth-control-pills#1
https://www.mathscareers.org.uk/article/statistically-safe-sex/
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The pill is 99.9% effective when used PROPERLY - Spanky KU - 5/17 15:05:58