Question

Известно, что винекотором регионе вероятно того, что родившийся младенец окажется мальчиком, равно 0,512. в 2010г. в этом регионе на 1000 родившихся младенцев в среднем пришлось 477 девочек. насколько частота рождение девочек в 2010 г. в этом регионе отличается от вероятности этого события

Answer 1

Вероятность рождения девочки - .1 - 0,512 = 0,488.

В 2010 вероятность была 477_1000 = 0,477

Ответ: на 0,011.

Answer 2

Calculation of the Difference in Birth Rate

To calculate the difference in birth rate between the expected probability of a male birth and the actual frequency of female births in a given region in 2010, we can use the information provided.

The given information states that the probability of a newborn in this region being a boy is 0.512. This means that out of every 1,000 births, we can expect approximately 512 to be boys.

Additionally, it is mentioned that in this region in 2010, out of every 1,000 newborns, there were on average 477 girls.

To calculate the difference in birth rate, we can subtract the actual frequency of female births from the expected probability of male births:

Difference in Birth Rate = Expected Probability of Male Births - Actual Frequency of Female Births

Difference in Birth Rate = 0.512 - 0.477

Calculating this difference, we find that the birth rate of girls in this region in 2010 differs from the expected probability by approximately 0.035 or 3.5%.