ITM 330 Assignment 3

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In Python the _____ symbol is used as the not-equal-to operator.

!=

In Python the ___________ symbol is used as the equal operator

==

In Python, _________ literals can be written in several ways, but most programmers prefer the use of the standard values True and False.

Boolean

Multiple Boolean expressions can be combined by using a logical operator to create _____ expressions.

compound

AND, OR, and NOT are examples of ________ operators.

logical

What is the result of the following Boolean expression, given that x=5, y=3, z=8? not(x<y or z>x) and y<z

False

Which is the result of the following Boolean expression, given that x=5, y=3, and z=8? x<y and z>x

False

What is the result of the following Boolean expression, given that x=5, y=3, z=8? x<y or z>x

True

A compound Boolean expression created with the ______ operator is TRUE only if both of its subexpressions are TRUE.

and

Which of the following requires that a condition be tested within the loop to determine whether the loop should continue?

conditional iteration

A(n) _________ structure is a logical design that controls the order in which a set of statements execute.

control

The decision structure that has two possible paths of execution is known as _____.

dual alternative

When an if-else statement needs to allow for more than two possible alternatives, you use a(n) ____________ clause.

elif

A ____________ is a Boolean-valued variable used to report whether a certain circumstance has occured

flag

Which of the following is the correct if clause to determine whether choice is anything other than 10?

if choice != 10

Which of the following is correct if clause to determine whether y is in the range 10 through 50, inclusive?

if y>= 10 and y <= 50

Using a while loop to ensure a proper response is received from a request is called ____________.

input validation

When an if-else statement contains other of-else statements, it is said to be

nested

When one loop is contained in the body of another loop, it is said to be ____________

nested

Which logical operators perform short-circuit evaluation?

or, and

The _______ statement is a do-nothing statement.

pass

When Python stops evaluating a compound condition with the logical and operator because a condition evaluates to False, it is called ________ evaluation.

short-circuit

When an of-else statement is evaluated, which block of statements is evaluated?

the first condition satisfied

What Python loop repeatedly executes a block of statements as long as certain conditions is met?

while

what does the following expression mean? x<=y

x is less than or equal to y


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