(b) the joint probability density function of random variables x and y is fx, y(x, y) = xy 0 < ; i; < 1 , 0 < y < 2, 0 otherv. rise. (5.66) [ 5.9 bivariate gaussian random variables 191 find the following ql1antities.(a) e (x] and var(x ].(b) e(y] and var[y].( c) the covariance cov(x ) y].(d) the correlatiori coefficient px, y

Ihave a music player on my phone. i can buy songs, add them to playlists and play them. obviously it would be redundant to store each song in each playlist; each playlist is just a list of pointers to the songs. for this lab you will simulate this behavior. your program will need to have options to: add songs to the system library (you will store the text of the first line of the song, rather than the audio) add playlists add songs to a playlist list playlists play a playlist list all of the songs in the library with a count of how many times each song has been played remove a song from a playlist remove a playlist remove a song from the library (and thus from all playlists that contain it) note that we will not be checking many error cases. in real programming this would be bad, you should usually try to recognize and respond to as many types of errors as you can. in the context of class we are trying to acquaint you with as many concepts as possible, so for the sake of educational efficiency we will not be checking most errors in this lab, you may assume that your user provides correct input. you may add all appropriate error testing if you wish, but we will not be testing for it.

Farah works in an office with two other employees. all three share a printer and an internet connection. the utility that makes this possible is defragger quicktime soho winzip

The average cost of one year at a private college in 2012-2013 is $43,289. the average grant aid received by a student at a private college in 2012-2013 is $15,680.   what is the average student contribution for one year at a private college in 2012-2013?