PLEASE HELP ASAP!!! I dont understand how they want me to do this. could someone please explain how to do it along with the answer?

Use the data given below to answer the following questions.

68, 63, 67, 66, 65, 87, 69, 61, 86, 82, 28.

A. What is the outlier of the data? Explain why you consider this number the outlier.

B. Calculate the mean of the given data set. You must show your work to receive all possible points.

C. Calculate the mean of the given data set excluding the outlier value. You must show your work to receive all possible points.

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