设连续型随机变量X的分布函数为F(x) kx2, 0 x 1 ,1, x 1求: (1)常数 k; (2) PvXv; (3)方差 DX.解:(1)由于连续型随机变量X的分布函数F(x)是连续函数,所以0, x 0lim F(x) lim F(x) 1 即 k=1,故 F(x) x2, 0 x 1x 1 x 11, x 1(2)P(0.3 X 0.7) P(0.3 X 0.7...
origin, and French is an official language of Canada as well as English. About 45% of the people are of Britishorigin, that is, they or their parents or grandparents, etc., come from Britain. Nearly 30% are of French origin. Most of the French-Canadians live in the province of Quebec...
Canadians of all ages take part in this festival across the country. Canada Day is the year’s biggest national party. In many towns and cities, the government organizes a lot of events, often outdoors. These include parades(游行), concerts, festivals, firework displays and ceremonies for new...
The mainstream corporate media says that reports about intentional weather modification are “conspiracy theories.” And, yet, CBS News reportednine years agothat government-funded scientists were able to do exactly that. It doesn’t get much more mainstream than CBS News. ...
for those of us seasoned with more years than we’d care to admit. Now, my wife and I, like countless other Canadians, have always found solace in that winter migration—exchanging snow for sand, and ice for the gentle roll of the Gulf of Mexico. Sarasota, to be exact. But this year...
Where You Live Matters: Report Shows Canadians Have Different Healthcare ExperiencesAbout the Health Council of CanadaHealthcarepapers
Canadians, I guess. (I’m going to use this explanation whenever I’m confused, which will be often.) Among the partygoers is Vanity (yes! Prince’s buddy!), dressed in some sort of Cleopatra sort of costume. And her boyfriend is dressed as this: ...
• Veranda is one of the first coffees Starbucks introduced as part of their Blonde brews last year • The Blonde Brews were crafted with Canadians in mind after a survey of Canadian coffee drinkers revealed that 60% prefer a ‘lighter’ coffee, which Starbucks did not offer ...
for those of us seasoned with more years than we’d care to admit. Now, my wife and I, like countless other Canadians, have always found solace in that winter migration—exchanging snow for sand, and ice for the gentle roll of the Gulf of Mexico. Sarasota, to be exact. But this year...
News, Canada has ranked number 1 in the world (for the 5th consecutive year) for providing a good quality of life. Friendly and approachable people Going alone in a new country can be intimidating. But it shouldn’t be if you are moving to Canada. Canadians are famous for being very ...