A start-up company built a database of customers and sales information. for each customer, it recorded the customer's name, zip code, region of the country (east, south, midwest, west), date of last purchase, amount of purchase (in dollars), and item purchased. (a ) identify whether the data are cross sectional or a time series. (b )give a name to each variable and indicate if the variable is categorical, ordinal, or numerical (if a variable is numerical, include its units if possible). (c )list any concerns that you might have for the accuracy of the data.

Abroker showed one of his own listings to a buyer he was representing. the buyer decided to make an offer on the property, which was accepted. at no point did the broker disclose his dual agency status. the broker may be:

On january 1, vermont corporation had 40,000 shares of $10 par value common stock issued and outstanding. all 40,000 shares has been issued in a prior period at $20.00 per share. on february 1, vermont purchased 3,750 shares of treasury stock for $24 per share and later sold the treasury shares for $21 per share on march 1. the journal entry to record the purchase of the treasury shares on february 1 would include a credit to treasury stock for $90,000 debit to treasury stock for $90,000 credit to a gain account for $112,500 debit to a loss account for $112,500

Describe three scenarios in which you might utilize mathematics to investigate a crime scene, accident scene, or to make decisions involving police practice. be sure to explain how math is used in police as they work through each scenario.