Question

Write an If-Then statement that displays the message "The number is not valid" if the variable speed is outside the range 0 through 200 .

Short answer

Question: Write an If-Then statement that checks if the variable "speed" is outside the range of 0 to 200 and displays the message "The number is not valid" if it is. Answer: ```python if speed < 0 or speed > 200: print("The number is not valid") ```

Step-by-step solution

Write the If-Then statement

To create an If-Then statement, we will use the syntax "if CONDITION then ACTION". In this case, the condition is that the speed is outside the range 0 to 200, and the action is to display a message.

Define the condition

The condition for this exercise is that the variable "speed" should be outside the range 0 to 200. We can write this condition as: "speed < 0 or speed > 200". Therefore, we will use this condition in the If-Then statement.

Write the action

The action we want to perform is to display a message saying "The number is not valid". For this, we will use the function "print()" which will display the message inside the parentheses.

Putting it all together

Now we will combine the condition and the action in the If-Then statement. The complete If-Then statement will look like this: ``` if speed < 0 or speed > 200: print("The number is not valid") ``` This statement will check if the variable "speed" is outside the range 0 to 200 and display the message "The number is not valid" if it is.