Here is the cumulative frequency distribution table to draw the ogive curve:





N.B. Unless the class-width is a multiple of 5, you can't change the x-axis scaling by pressing any button. For such class-widths, the x-axis scalings are fixed, with the values depending on the class-width. For your ínformation,
Class-width = lower limit of second class - Lower limit of first class


Watch the following video tutorial to learn how to use this app.