Use the table below to answer parts a & b. Plan A P…

Use the table below to answer parts a & b. Plan A Payout Pr(Payout) $-20 0.48 $-10 0.40 $   5 0.12   1. In the long run, what is the expected payout for Plan A? Show all work.     2. What is the standard deviation of this distribution?  Show all work   Type your answer below.  Show all work on your answer sheet.  Correct answers without work shown will not receive full credit.

Provide an appropriate response.A group of students were ask…

Provide an appropriate response.A group of students were asked if they carry a credit card. The responses are listed in the table.If a student is selected at random, find the probability that he or she is a sophomore and owns a credit card. Round your answers to three decimal places.

The student body of a large university consists of 60% femal…

The student body of a large university consists of 60% female students.  A random sample of 8 students is selected.  What is the probability that among the students in the sample at least 7 are female?  Round answer to 4 decimal places.  Type your numerical answer only below.