<em>Answer: The answer is B.)</em>
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<span>72% of all students at the local university eat out more than twice a week is a population parameter.
A population parameter is a value describing the whole population, i.e. all of the objects in it. A sample statistic on the other hand describes only a chosen sample from the population.</span>
A triangle's total angle equals 180 degrees. so put all the other values together and then subtract from 180 to solve for x