You can use the function IsNumeric to check if a certain string is numeric or not. It is numeric if it contains only numbers and only one "-" (negative sign). If no text is entered in the textbox,...

There are 10 different results. The frequency array stores the frequency of each result. For example, if the value of frequency(1) is 5, it means that out of 40 students, 5 gave a score of 1. In the...