Question 1

The operator precedence of a given programming language does not have to necessarily be the same as in mathematics.

Accepted Answer

In programming languages, operator precedence is defined by the language's syntax rules, and while many languages design their operator precedence to reflect mathematical conventions, they are not required to do so and can differ.

Question 2

Like most programming languages, Python uses static typing when determining a variable's data type.

Accepted Answer

The answer of Like most programming languages, Python uses static...

Question 3

Which one of the following is not an expression?
A) 4 + (3 * k)
B) 4
C) 3 * k
D) *

Accepted Answer

An expression in programming is a combination of variables, operations, and values that yields a result value. Choices A, B, and C all represent expressions as they combine variables, operations, and/or values to produce a result. Choice D, "*", is not an expression by itself but an operator that needs operands (values or variables) on both sides to form an expression.

Question 4

The expression 4 + 3 is in
A) prefix Notation
B) infix Notation
C) postfix Notation

Accepted Answer

The expression 4 + 3 is in infix notation, where the operator (+) is placed between the operands (4 and 3).

Question 5

Based on its rules of operator precedence, Python would evaluate the expression below to
$\quad $$\quad $$\quad $4 + 2 * 5 + 3**2
A) 23
B) 39
C) 29

Accepted Answer

In Python, the order of operations follows PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction). Thus, the expression is evaluated as follows: 3**2 = 9, 2*5 = 10, and then 4 + 10 + 9 = 23.

Question 6

Values can be converted from one data type to another by
A) coercion
B) type conversion
C) type titration
D) both A and B

Accepted Answer

Values can be converted from one data type to another through both coercion and type conversion. Coercion is an implicit conversion initiated by the compiler, while type conversion (also known as casting) is an explicit conversion done by the programmer.

Question 7

The following expression is an example of
(float) 2 + 4.5
A) type Coercion
B) type Titration
C) type Conversion
D) type Concentration

Accepted Answer

The answer of The following expression is an example of
(float)...

Question 8

Python built-in functions _____ and _____ can be used to convert a string type to a numeric type.

Accepted Answer

The answer of Python built-in functions _____ and _____ can...

Question 9

Give two expressions in Python, one using the minus symbol (-) as a unary operator, and one using it as a binary operator.

Accepted Answer

The answer of Give two expressions in Python, one using...

Question 10

Evaluate the following mathematical expressions as Python would evaluate them.
23  5
24  3
7 // 5
7 / 5
2 ** 3

Accepted Answer

The answer of Evaluate the following mathematical expressions as Python...

Question 11

Give a Python statement using type conversion to convert the floating value of variable x = 1.24 to an integer value.

Accepted Answer

The answer of Give a Python statement using type conversion...

Quiz 2: Data and Expressions

The operator precedence of a given programming language does not have to necessarily be the same as in mathematics.

Like most programming languages, Python uses static typing when determining a variable's data type.

Which one of the following is not an expression?

The expression 4 + 3 is in

Based on its rules of operator precedence, Python would evaluate the expression below to $\quad$ $\quad$ $\quad$ 4 + 2 * 5 + 3**2

Values can be converted from one data type to another by

The following expression is an example of (float) 2 + 4.5

Python built-in functions _ and _ can be used to convert a string type to a numeric type.

Give two expressions in Python, one using the minus symbol (-) as a unary operator, and one using it as a binary operator.

Evaluate the following mathematical expressions as Python would evaluate them. 23 5 24 3 7 // 5 7 / 5 2 ** 3

Give a Python statement using type conversion to convert the floating value of variable x = 1.24 to an integer value.

Quiz 2: Data and Expressions

The operator precedence of a given programming language does not have to necessarily be the same as in mathematics.

Like most programming languages, Python uses static typing when determining a variable's data type.

Which one of the following is not an expression?

The expression 4 + 3 is in

Based on its rules of operator precedence, Python would evaluate the expression below to \quad \quad \quad 4 + 2 * 5 + 3**2

Values can be converted from one data type to another by

The following expression is an example of (float) 2 + 4.5

Python built-in functions _____ and _____ can be used to convert a string type to a numeric type.

Give two expressions in Python, one using the minus symbol (-) as a unary operator, and one using it as a binary operator.

Evaluate the following mathematical expressions as Python would evaluate them. 23 5 24 3 7 // 5 7 / 5 2 ** 3

Give a Python statement using type conversion to convert the floating value of variable x = 1.24 to an integer value.

Based on its rules of operator precedence, Python would evaluate the expression below to $\quad$ $\quad$ $\quad$ 4 + 2 * 5 + 3**2

Python built-in functions _ and _ can be used to convert a string type to a numeric type.