What is a hypothesis A. An explanation of events that is most often right and is proven by experiments
B. A series of guesses based on experiments C. An idea based on reasoning that can be test often written in as an if then statement
D. An experiment to prove a law

Which of the following is an example of how telecommunication devices people do their jobs? a.) a security guard checks the time using a digital watch. b.) a banker does some quick math using a solar calculator. c.) a nurse uses a digital thermometer to take a patient’s temperature. d.) a construction worker reports in to his office using a cell phone.