# limits

1. ### URGENT: What are the statistical limits and biases in this scientific article?

I need to deliver this exercise in the next 10 hours. QUESTION: What are the statistical limits and biases in this scientific article, which challenge its validity? THE ARTICLE: Efficacy of hepatitis A vaccine in prevention of secondary hepatitis A infection: a randomised trial Abstract...

3. ### limit of a probability

Hi, I need to show that lim for n going to infinity of the probability of (n-1) C1>=C2+C3+...+Cn-1 =0. I have C1<C2<...<Cn-1<Cn. All Ci >0. I tried to use logic and I use that lim of a prob is the prob of the limit. For the second part I have a doubt that I can use it as it is not always...
4. ### Producing plots where axis are to same scale

Hello, I'm trying to produce a plot of topography, and I want distance (x) to be plotted to the same scale as elevation (y), so that n units on the x axis equal the same length as n units on the y axis. I've had a go as below: plot(Point,CElev, asp=1, type="l" )...