0, 0, 5, 9, 44, 45, 46, 50, 50, 55, 62, 66, 73, 76, 77, 78, 80, 82, 84, 94
these numbers represent marks students got on tests, they have then given me 5 different categories, N wich is makrs between 0 and 49, P 50 to 59, C 60 to 69, D 70 to 79 and HD 80 to 100
im supposed to make a program that calculates the count (which basically counts how many items in each categorey, or in more then one category depending on what has been selected), the Sum, the Mean and finally (the thing i hate most) standard deviation.
now ive done everything except the latter, can anyone tell me if there is either a formula that automatically works standard deviation or how i can work out the square root of a number in vb.net (without using a function coz ill need to work out the square root within an if statement and apparently you cant use functions in an if statement)
Edited by BTPH, 06 May 2005 - 10:58 PM.