Calculate Quartile Deviation and coefficient of Quartile Deviation from the following data : Age in years : 50 51 52 53 54 55 56 No. of Teachers: 10 12 15 10 14 18 6.

What is the level of measurement of the variable “age”? A. IQR B. Range C. Median D. Ordinal E. Mode F. Nominal G. Mean H. Interval/Ratio I. IQV J. Standard deviation

Given the following data, find the following: Round your answers to 2 decimal places as needed 25 99 21 18 72 46 78 91 80 57 17 59 Mean = Median = Range = Sample standard deviation =

find the actual percentage in the data set, sort the DRIVE variable and count how many of the data points are less than 25 out of the total 35 data points. That is the actual percentage. How does this compare with your prediction? Mean: 57.457 Standard deviation: 26.539 Predicted percentage: 0.110 Drive: 44 20 88 6 71 42 76 63 61 63 84 28 55 33 88 80 86 83 5 85 25 25 54 54 81 73 29 76 78 77 42 65 71 94 6