How does Rounding work in Python?

[Planet_Fall]

I have statistic homework, and I was making a program to find the class intervals but the final answer needs to be rounded up to the nearest 10 or 5. How would I do this?

Python:

array =  [] y = 2 # Gets number of pieces of information number_info = int(input("How many items of information do you have? ")) # Gets number of classes def number_of_classes (x):     higher = False     while higher == False:         K = pow(2,y)         if K >= number_info:             higher = True         else:             y += 1     return "There are", y , "classes" # Gets pieces of information for i in range (0, number_info):     array.append(float(input("Enter Info: "))) # Gets Lowest and Highest Number number_comp_A = array[0] number_comp_B = array[0] for i in range (0, number_info):     number_to_comp_lowest = array[i]     number_to_comp_highest = array[i]     if number_comp_A > number_to_comp_lowest:         number_comp_A = number_to_comp_lowest     if number_comp_B < number_to_comp_highest:          number_comp_B = number_to_comp_highest highest_num = number_comp_B lowest_num = number_comp_A # Finds Class Intervals # i >= H - L / Classes number_of_classes (number_info) intervals = (highest_num - lowest_num) / y print (intervals) print (highest_num) print (lowest_num) print (y)

[Dreadnought]

You can use the round function to round floating point numbers to any number of digits after the decimal point (you can use negative numbers to round to digits before the decimal point).

So this lets you round to the nearest multiple of any power of ten you want. To round to the nearest multiple of any other number just divide by this number, round, then multiply by the number.