four sevenths of students got an A in class twelve students did not. How many got A;s

Subject viz. Hindi, english and kannada. There are 28 students taking hindi, 26 taking kannada and 16 taking english. There are 12 students taking both hindi and english, 4 taking hindi and kannada and 6 that are taking english and kannada. In addition we know that 2 students are taking all the...

Mean and Variance A university has 10,000 students of which 65% are male and 35% are female. If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students

When students say "i can't do it" what is a good response to give them

Any ideas about institutions offfering undergrad level course online at affordable prices for international (F1 visa status) students in US? I notice they have us pay three times as much as state residents in community colleges for online classes, is it same everywhere or am I just not...