Trucks and cars on highway us 421 are poisson processes with rate 40 and 100 per hour respectively. 1/8 of the trucks and 1/10 of the cars get off on exit 257 to go to the bojangle’s in yadkinville. (a) find the probability that exactly 6 trucks arrive at bojangle’s between noon and 1pm. (b) given that there were 6 truck arrivals at bojangle’s between noon and 1pm, what is the probability that exactly two arrived between 12: 20 and 12: 40? (c) suppose that all trucks have 1 passenger while 30% of the cars have 1 passenger, 50% have 2, and 20% have 4. find the mean and standard deviation of the number of customers are that arrive at bojangles’ in one hour.

The variable in a relation who’s value depends on the value of the independent variable is called what?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?

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: