Use the formulas below to find the line of best fit for the given data set. write your answer in the form y = mx + b, where m and b are decimals, rounded to the nearest hundredth, if necessary. and , where n = the number of points s = the sum of the products = x1y1 + x2y2 + … + xnyn t = the sum of the x-values = x1 + x2 + … + xn u = the sum of the y-values = y1 + y2 + … + yn v = the sum of the squares of the x-values = x12 + x22 + … + xn2

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.