Question

What statement do you use in Python to write a dual alternative decision structure?

Answer 1

In Python, a dual alternative decision structure is implemented using an if-else statement, which executes different blocks of code depending on whether a condition is true or false.

Step-by-step explanation:

In Python, to write a dual alternative decision structure, you use an if-else statement. This allows you to execute one block of code if a condition is true, and another block of code if the condition is false. Here is an example:

if condition:
# Block of code to execute if the condition is true
else:
# Block of code to execute if the condition is false

For instance, if you want to check if a number is positive or negative, you might write:

number = 5
if number > 0:
print("The number is positive.")
else:
print("The number is negative or zero.")