-6+9i
9i = 6
i = 6/9 or 2/3
Solution:
Number of babies which are female = 50%=![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
So, if Population of 50 is considered , and 50% of population is female then out of 25 must be female.
Population of female can't exceed 25.
Probability of an event = ![\frac{\text{Total favorable outcome}}{\text{Total Possible outcome}}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7BTotal%20favorable%20outcome%7D%7D%7B%5Ctext%7BTotal%20Possible%20outcome%7D%7D)
Probability that 20 or more of the 50 babies born today were female
= ![_{20}^{50}\textrm{C}\times [\frac{1}{2}]^{20} \times [\frac{1}{2}]^{30}+_{21}^{50}\textrm{C}\times [\frac{1}{2}]^{21} \times [\frac{1}{2}]^{29}+_{22}^{50}\textrm{C}\times [\frac{1}{2}]^{22} \times [\frac{1}{2}]^{28}+_{23}^{50}\textrm{C}\times [\frac{1}{2}]^{23} \times [\frac{1}{2}]^{27}+_{24}^{50}\textrm{C}\times [\frac{1}{2}]^{24} \times [\frac{1}{2}]^{26}+ _{25}^{50}\textrm{C}\times [\frac{1}{2}]^{25} \times [\frac{1}{2}]^{25}](https://tex.z-dn.net/?f=_%7B20%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B20%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B30%7D%2B_%7B21%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B21%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B29%7D%2B_%7B22%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B22%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B28%7D%2B_%7B23%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B23%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B27%7D%2B_%7B24%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B24%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B26%7D%2B%20_%7B25%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B25%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B25%7D)
Simulation of the Above Situation
If we use a double sided coin and a sign heads us females and Tails as males,Toss the coin 50 times , number of times Heads comes shows number of females born and number of times tails appears shows Population of men.
It may not happen that Number of heads =Number of tails if we toss the coin 50 times.So if number of tosses increases the chances are more likely that , number of heads= Number of tails. But for above problem we just have to toss coin 50 times only, that is
Number of males = Number of females
Answer:
w = (p - 21)/2
Step-by-step explanation:
Rearrange the equation so that it is equal to w.
p = 21 + 2w
p - 21 = (21 + 2w) - 21
p - 21 = 2w
(p - 21)/2 = (2w)/2
(p - 21)/2 = w
w = (p - 21)/2
Answer:
116011.5
Step-by-step explanation: