"ارجوكم اريد مساعدة ...عاجل"

السلام عليكم ..

مرحبا اعضاء ومشرفين الملتقى ...سوري ما بغيت اول مشاركه لي تكون على شكل طلب ...بس شو نسوي هذي الظروف .بس ان شالله ما بيخيب ظني فيكم ...

هل ممكن تساعدوني في ايجاد حل لهذا السؤال ..

use methods to calculate the standard deviation of the total average grades for all the assignment and for all students, and

draw lines (as bar in a bars chart) representing the average grades distribution in the class. In this case, your program should use method to calculate the number of students whose average grades between (99-90), (89-80), (79-70), (69-60), (59-50), (49-40), (39-30), (29-20), (19-10), (9-1), and display a histogram of the grade distribution in the class using lines (as bars in a bar chart) in vertical positions and in the right direction. You are free to select the scale for the line size and the distance between two lines to fit the height and the width of the applet window, respectively.