I. I did the following problem: (Descriptive)
For the following data: (Ordered) ∑X=878 ∑X2=39.724
25 34 37 38 38 40 42 42 42 42
44 44 47 48 48 49 50 52 56 60
a) Make and Draw a Relative Frequency Diagram. Use 6 Classes
b) Prepare a Stem and Leaf Diagram
c) Calculate
1) the mean or average
2) quartile-1, quartile-2, quartile-3
3) Draw the Box-Plot (Box-Wisker Diagram)
4) Interquartile range
5) variance (use computational formula)
6) coefficient of variation