Some states are running out of license plate numbers. delaware currently uses six-digit numbers in its license plate numbering system. the state of washington recently stated that it needs to explore options to replace their current system of three numerical digits followed by three letters. new jersey currently uses a system of one letter, two numerical digits, then three letters. how could the state of washington change their license plate system to address the possible problem of running out of plate numbers? a. washington can use 6 digits or letters for their numbering system. b. washington can use more than 6 digits or letters for their numbering system. c. washington can use 3 digits or 3 letters for their numbering system. d. washington can use 6 letters for their numbering system.

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.