50 POINTS PLEASE HELP 1. Write out all the elements of set A. Be sure to write it in set notation. show your work

2. In set notation, write out the elements that are B' show your work

3. In set notation, write out be sure to show your work:

A U C

4. In set notation write out show your work:

B ⋂ C

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?