The time between arrivals of small aircraft at a county airport is exponentially distributed with a mean of one hour. round the answers to 3 decimal places. (a) what is the probability that more than three aircraft arrive within an hour? enter your answer in accordance to the item a) of the question statemententry field with incorrect answer 0.05 (b) if 30 separate one-hour intervals are chosen, what is the probability that no interval contains more than three arrivals? enter your answer in accordance to the item b) of the question statemententry field with incorrect answer 0.2161 (c) determine the length of an interval of time (in hours) such that the probability that no arrivals occur during the interval is 0.34.

Design an er diagram for keeping track of information about votes taken in the u.s. house of representatives during the current two-year congressional session. the database needs to keep track of each u.s. state's name (e.g., texas', new york', california') and include the region of the state (whose domain is {northeast', midwest', southeast', southwest', west'}). each congress person in the house of representatives is described by his or her name, plus the district represented, the start date when the congressperson was first elected, and the political party to which he or she belongs (whose domain is {republican', democrat', 'independent', other'}). the database keeps track of each bill (i.e., proposed law), including the bill name, the date of vote on the bill, whether the bill passed or failed (whose domain is {yes', no'}), and the sponsor (the congressperson(s) who sponsored - that is, proposed - the bill). the database also keeps track of how each congressperson voted on each bill (domain of vote attribute is {yes', no', abstain', absent'}). additional information:

Scenario: a rectangular plot of ground is 5 meters longer than it is wide. its area is 20,000 square meters. question: what equation will you find the dimensions? note: let w represent the width. options: w(w+5)=20,000 w^2=20,000+5 (w(w+5))/2=20,000 w+2(w+5)=20,000

One positive integer is 2 less than another. the product of the two integers is 24. what are the integers?