91Ó°ÊÓ

What is a compound Boolean expression?

The following truth table shows various combinations of the values true and false connected by a logical operator. Complete the table by circling T or \(\mathrm{F}\) to indicate whether the result of such a combination is true or false. $$\begin{array}{lcc} \text { Logical Expression } & \text { Result (circle T or F) } \\ \text { True AND False } & \mathrm{T} & \mathrm{F} \\ \text { True AND True } & \mathrm{T} & \mathrm{F} \\ \text { False AND True } & \mathrm{T} & \mathrm{F} \\ \text { False AND False } & \mathrm{T} & \mathrm{F} \\ \text { True OR False } & \mathrm{T} & \mathrm{F} \\ \text { True or True } & \mathrm{T} & \mathrm{F} \\ \text { False or True } & \mathrm{T} & \mathrm{F} \\ \text { False or False } & \mathrm{T} & \mathrm{F} \\ \text { Not True } & \mathrm{T} & \mathrm{F} \\ \text { NOT False } & \mathrm{T} & \mathrm{F} \end{array}$$

Assume the variables \(a=2, b=4,\) and \(c=6 .\) Circle the \(T\) or \(F\) for each of the following conditions to indicate whether its value is true or false.

Explain how short-circuit evaluation works with the AND and or operators.

Write an If-Then statement that displays the message "The number is valid" if the variable speed is within the range 0 through 200 .

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 .

What values can you store in a Boolean variable?

What is a flag variable?