The market research department of the National Real Estate Company conducted a survey among 500 prospective buyers in a suburb of a large metropolitan area to determine the maximum price a prospective buyer would be willing to pay for a house. From the data collected, the distribution that follows was obtained. Maximum Price Considered, x P(X = x)
(in thousands of dollars)
480 10
500
490 20
500
500 75
500
510 85
500
520 70
500
550 95
500
580 95
500
600 45
500
650 5
500

Required:
Compute the mean, variance, and standard deviation of the maximum price x that these buyers were willing to pay for a house.

The following accounts appeared in recent financial statements of delta air lines. identify each account as either a balance sheet account or an income statement account. for each balance sheet account, identify it as an asset, a liability, or stockholders' equity. for each income statement account, identify it as a revenue or an expense. item financial statement type of account accounts payable balance sheet advanced payments for equipment balance sheet air traffic liability balance sheet aircraft fuel (expense) income statement aircraft maintenance (expense) income statement aircraft rent (expense) income statement cargo revenue income statement cash balance sheet contract carrier arrangements (expense) income statement flight equipment balance sheet frequent flyer (obligations) balance sheet fuel inventory balance sheet landing fees (expense) income statement parts and supplies inventories balance sheet passenger commissions (expense) income statement passenger revenue income statement prepaid expenses income statement taxes payable balance sheet

Zoe would like to be able to save for night courses at the local college. which of these would be a good way for zoe to make more money available for savings without dramatically changing her budget? economía

Why is efficiency an important economic goal?