f.

The gender of one child does not affect the gender of the second child, the events are independent.

This way the solution is: 1 (first child of gender G) + mean number of children of the gender G + 1 (first child of opposite gender "not G"). While historically, there have been about 105 boys born for every 100 girls worldwide — which creates a “sex ratio at birth” of 1.

The probability that you have at least one boy is therefore 100% – 2.

To calculate the odds of having a boy when you have two children, we start by calculating the probability of having two girls.

If the first child is a boy, then there is a 1/2 chance that the second child is either gender. It seems that kidnapping and age do have an inverse relationship. 5% Actual.

This is the first paper to systematically investigate the factors influencing residents’ intentions to have a second child.

Then the chance of the second being a girl is 1/2 (1) One of them is a boy (but we don't know which one). They just have to wait for the moment that the gender is actually visible on the echo, after about 17 weeks. May 27, 2016 · If you are given that the first child is a girl or that the second child is a girl, then the obvious answer of 50% is correct.

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So the second problem gives probability 1/2 of the other child being a girl (unless there is some unstated.

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007 6 0. 32/52 is about 0.

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The probability that the second toss is heads, given that the first toss is heads.
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The estimated probability of intending to have a second child remains.

In each case, we seem to see slightly more boys than we'd expect from 50/50 chance, probably due to the fact that 2% more boys are actually born in the normal 51/49 birth sex ratio.

k. Almost everyone has around a 50% chance of having a boy and a 50% chance of having a girl. .

49 – 30 – 9 = 10 a girl. . Q3. By examining combinations of parents' eye colors, the calculator can determine the probability of your baby having blue, green, hazel, or brown eyes. To calculate the odds of having a boy when you have two children, we start by calculating the probability of having two girls.

This means the most likely explanation for same-gender families is simple chance.

. 45% = 97.

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Oct 15, 2015 · These are two quite different questions.

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The sex of the baby depends on which sperm gets to the egg first.