Suppose fifty tweets are decided on at random with the examine population. Give an estimate of your probability that at least 50 % of these tweets will comprise your chosen key phrase. Make clear clearly how you obtained this estimate. 很多同学接触essay相比report多一些，所以在写report的时候，还是按照essay的风格在进行信息论证，这样是不行的。Report不需要太多的论点论证，重要的是根据repor... http://report46890.mybloglicious.com/32365677/report-secrets