A random sample of size 1,000 is taken from a population where p= .20. What is σx

Needs 83,000 optical switches next year (assume same relevant range). by outsourcing them, worldsystems can use its idle facilities to manufacture another product that will contribute $ 140,000 to operating income, but none of the fixed costs will be avoidable. should worldsystems make or buy the switches? show your analysis.

Match the type of agreements to their descriptions. will trust living will prenuptial agreement

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.)