how to print up to 3 decimal places in python code example

Example 1: finding 2 decimal places python

a_float = 3.14159
formatted_float = "{:.2f}".format(a_float)

Example 2: print 2 decimal places python

print("{0:.2f}".format(sum(query_marks)/len(query_marks)))

Example 3: how to print answer 2 decimal places in python 3

print("{0:.2f}".format(sum(student_marks[query_name])/3))