The length (pgs) of math research projects is given in the sample below. Using this information, calculate the range, variance, and standard deviation. 35, 23, 17, 42, 18, 16, 16, 19, 11, 30, 26 Note: Round off the mean to 1 decimal place, the variance to 2 decimal places, and the standard deviation to 4 decimal places in your answers. range = 31 variance = 88.2 standard deviation =A box-and-whisker plot for a set of data is given below. Find the five-number summary 20 32 54 75 85 28 30 50 60 70 80 98 Find the median: Find the maximum: Find the minimum: Find Q3: Find Q1 :For the given sample data, find Ex, n, and x : X1 = 6, x2 = 10, x3 = 10, x4 = 14, x5 = 20, x6 = 13, x7 = 9, x8 = 10 Ex = 17.70 n = 8 x =