9. in a sample of 200 residents of georgetown county, 120 reported that they believed the county real estate taxes were too high. a. develop a 95 percent confidence interval for the proportion of residents who believe the tax rate is too high. b. would it be reasonable to conclude that the majority of the taxpayers feel that the taxes are too high?

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression