“Per cent” means “for each 100,” so 81% means “81 for each 100,” which translates to 81/100 as a fraction. 81 and 100 are what are called *coprime*, which means they don’t share any factors, so we can’t reduce the fraction any more.
Binomial experiments are ruled by a very clean formula: if you want k successes performing n experiments with probability of success p, the probability is
![\displaystyle \binom{n}{k}p^k(1-p)^{n-k}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbinom%7Bn%7D%7Bk%7Dp%5Ek%281-p%29%5E%7Bn-k%7D)
If you plug your values, you'll get
![\displaystyle \binom{6}{5}0.5^5(0.5)^{1}= \binom{6}{5}(0.5)^6=0.09375](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cbinom%7B6%7D%7B5%7D0.5%5E5%280.5%29%5E%7B1%7D%3D%20%5Cbinom%7B6%7D%7B5%7D%280.5%29%5E6%3D0.09375)
Answer:
What's the question?
Step-by-step explanation:
Answer:
Step-by-step explanation:
16 ounces = 1 pound as you all know
2x16 + 3 = 35
56 - 35 = 21 ounces or 1lb 5oz