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The chance the family consists of a boy and a girl is 14 / 27 , about 0.52. This variant of the boy and girl problem is discussed on many internet blogs and is the subject of a paper by Ruma Falk. [13] The moral of the story is that these probabilities do not just depend on the known information, but on how that information was obtained.
A 2008 analysis of test scores across 41 countries published in Science concluded that "data shows a higher variance in boys' than girls' results on mathematics and reading tests in most OECD countries", the results implying that "gender differences in the variance of test scores are an international phenomenon". However, it also found that ...
For example, some studies claim girls are, on average, more verbally fluent than boys, but boys are, on average, better at spatial calculation. [ 13 ] [ 14 ] Some have observed that this may be due to two different patterns in parental communication with infants, noting that parents are more likely to talk to girls and more likely to engage in ...
Moreover, Ingela and Lena found out that gender stereotypes cause differing interpretations of the same behavior in boys and girls, with girls being perceived as independent and having stronger communication and organizational skills and boys being seen as unprepared, unmotivated, and infantile, according to studies on gender attribution.
Odds of having identical quadruplets are about one in 15 million — which makes Mercedes and Jonathan Sandhu, and their four identical daughters, very special.
The four girls were delivered via cesarean section at 29 weeks gestation. The smallest was Petra, who weighed in at 2 pounds, 7 ounces; Hannah, the largest, was born at 2 pounds, 13 ounces. Sandhu ...
For example, researchers have found that three- and four-year-old boys were better at targeting and at mentally rotating figures within a clock face than girls of the same age. Prepubescent girls, however, excelled at recalling lists of words. These sex differences in cognition correspond to patterns of ability rather than overall intelligence.
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