Refer to the data set of 20 randomly selected presidents given below. treat the data as a sample and find the proportion of presidents who were taller than their opponents. use that result to construct a 95% confidence interval estimate of the population percentage. based on the result, does it appear that greater height is an advantage for presidential candidates? why or why not?

Which of these statements is correct? the system of linear equations 6x - 5y = 8 and 12x - 10y = 16 has no solution. the system of linear equations 7x + 2y = 6 and 14x + 4y = 16 has an infinite number of solutions. the system of linear equations 8x - 3y = 10 and 16x - 6y = 22 has no solution. the system of linear equations 9x + 6y = 14 and 18x + 12y = 26 has an infinite number of solutions.