What is the probabilty that out of 250 babies born, 130 or fewer will be male

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?

If i had 1234 apples and 1 banana what is the total amount

Angle that produces maximum distance