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How does probability help explain the results of a genetic cross?
Genetics often involves dominant and recessive alleles. For instance, blue eyes are recessive and brown eyes are dominant.1 Each parent contributes one allele. If you get two blues, then your eyes are blue. If you get one or two browns, then you eyes are brown. That means that, given a random contribution from your parents, you have a 25% probability of blue eyes. It also means that, even though you have brown eyes, you could be carrying the blue allele, and two parents with brown eyes could have a blue eyed child. ------------------------------------------------------------------ 1Its more complicated than that, since eye color is actually polygenic, involving more than one allele. This example was simplified to answer the question.
Five women live together in an apartment Two have blue eyes If two of the women are chosen at random what is the probability that they both have blue eyes?
well lets look at the probability on your first pick you will get a blue eyed girl 2 have blue out of 5, so yo uhave a 2/5 chance, or 40% on your second pick, there are 4 girls left, and one of them will have blue eyes now 1 have blue out of 4, so 1/4 or 25% so you multiply the two probabilities to get your final sequential probability 2/5 * 1/4 find a common denominattor, for this we will use 20 8/20 * 5/20 = 40/400 simplify it you get 1/10 0.10, or 10% chance
When drawing a card randomly from a deck what is the probability that it will be either a heart or a one-eyed jack?
The probability of drawing a heart is 1/4 or 25% (i.e., 13 of 52 cards). According to Wikipedia*, the one-eyed jacks are jack of spades and jack of hearts. The probability of drawing jack of spades is 1/52 (one card of 52). Therefore drawing either a heart (including the jack of hearts) OR jack of spades is (13/52 + 1/52) = 14/52 = 7/26 = 0.269 Just under 27 percent. * http://en.wikipedia.org/wiki/One-eyed_jack#One-eyed_Royals
Word for opposite of sophisticated?
childlike, wide-eyed, round-eyed, dewy-eyed, simple, credulous, fleeceable, green, gullible, innocent, ingenuous, simple-minded, unsophisticated, unworldly
If 2 people out of 5 are left-handed and if 1 out of 4 of those of those have blue eyes and 5 out of 8 of those are women how many blue-eyed left-handed women are there out of a total of 3200?
2/5 x 1/4 x 5/8 x 3200 = 200 of the people.
