If a sample is drawn in such a way that each time is selected, each item in the population has an equal chance of being drawn, the sample is called ansample

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

When solving this problem: 3025/5.5 = a/90.75 you get 49912.5 which would be the length of one of the sides of a square when the area is only 90.75 inches. is that answer correct, why, and how is it possible?

Which question is not a good survey question? a. don't you agree that the financial crisis is essentially over? 63on average, how many hours do you sleep per day? c. what is your opinion of educational funding this year? d. are you happy with the availability of electronic products in your state?