/sci/ - Science & Math

sup /sci/ I've got a statistics question and I'm hoping this board can help me out.


Let X be the number of left-handed students in the class. The mean and standard deviation of X are, respectively, and

A large lecture theater has 270 seats, 21 of which can accomodate left-handed students. Suppose it is known that 12% of people are left-handed. One class held in the theater has 208 students.

Let X be the number of left-handed students in the class. The mean and standard deviation of X are, respectively, _____ and ____

Let be the proportion of left-handed students in the class. The mean and standard deviation of are, respectively, _____ and ______

>>4919067

>>3283651

So wait... how does that work if you have an economy whose very basis is constant expansion?

Is this the reason why everybody in charge just ignores the Mexican hoards invading?