Answer:
0.25 is the probability
Step-by-step explanation:
In this question, we are tasked with calculating the probability that in a hospital on a certain day, at least 2 out of three babies born that day are female.
To calculate the probability , let’s list out some needed facts;
Let the probability of having a baby girl be g = 50% = 50/100 = 1/2 = 0.5
The probability of having a boy b will be 1-g = 1-0.5 = 0.5
Now, we have 3 babies and we want to find the probability of at lest two being girl.
Mathematically that would be ; ggb or ggg
since we are having at lest 2 girls
For the ggb, we have ; 0.5 * 0.5 * 0.5 = 0.125
For the ggg we have 0.5 * 0.5 * 0.5 = 0.125
In probability, once we have or, we add.
Thus 0.125 + 0.125 = 0.25
