A jar contains 3 red marbles, 2 blue marbles, and 5 yellow marbles. What is the probability of pulling a blue marble, replacing it, then pulling a blue marble again?

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?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine,t, the number lf tokens jason bought