Consider the following information on three stocks: State of Economy Probability of State of Economy Rate of Return if State Occurs Stock A Stock B Stock C Boom .25 .27 .15 .11 Normal .65 .14 .11 .09 Bust .10 −.19 −.04 .05 A portfolio is invested 45 percent each in Stock A and Stock B and 10 percent in Stock C. What is the expected return on the portfolio

One question from a survey was "how many credit cards do you currently have? " the results of the survey are provided. complete parts (a) through (g) below. click the icon to view the survey results. (a) determine the mean number of credit cards based on the raw data. the mean is 3.113.11 credit cards. (type an integer or a decimal. do not round.) (b) determine the standard deviation number of credit cards based on the raw data. the standard deviation is 1.9111.911 credit cards. (round to three decimal places as needed.) (c) determine a probability distribution for the random variable, x, the number of credit cards issued to an individual. x (# of cards) p(x) x (# of cards) p(x) 1 0.280.28 6 nothing 2 nothing 7 nothing 3 nothing 8 nothing 4 nothing 9 nothing 5 nothing 10 nothing (type integers or decimals. do not round.)