The results of the survey are shown in the table. if a student registered early, find the probability that the student is a undergraduate registered early registered on time undergraduate= 211 347 graduate= 329 581 a. 0.474 b. 0.608 c. 0.391 d. 0.144

Which of the following statements is true? a. the irrational number system is not closed under multiplication, because the product of two irrational numbers is always a rational number. b. the irrational number system is not closed under multiplication, because the product of two irrational numbers is not always an irrational number. c. the irrational number system is closed under multiplication, because the product of two irrational numbers is always an irrational number. d. the irrational number system is closed under multiplication, because the product of two irrational numbers is always a rational numbers. reset submit