Question

THIS IS A PYTHON ASSIGNMENT

1. The following are invalid variable names: 3g, 87 and 2h.

2. The operator != is an example of a relational operator.

3. A variable name identifies the kind of information stored in the object.

4. Python treats the variable names, a1 and A1, as the same variable.

5. The if/else selection structure is a single-selection structure.

6 A fatal logic error causes a program to execute and produce incorrect results.

7) A repetition structure performs the statements in its body while some condition remains

true.

8) Function float converts its argument to a floating-point value.

9) Function call range( 1, 10 ) returns the sequence 1 to 10, inclusive.

10) Sentinel-controlled repetition uses a counter variable to control the number of times a set

of instructions executes.

11) The symbol = tests for equality.

.PYTHON

Answer 1

1. The following are invalid variable names: 3g, 87 and 2h - True

In python,variable names cannot start with a digit.

2. The operator != is an example of a relational operator. -  False

The operator != is a comparison operator

3. A variable name identifies the kind of information stored in the object -  False

In python, variable names does not contain the data type. variable can be assigned with any kind of information.

4. Python treats the variable names, a1 and A1, as the same variable. - False

Variable in python are case sensitive

5. The if/else selection structure is a single-selection structure. - True

Python allows one set of statements to be executed if a condition is true and another set of actions to be executed if a condition is false.

6. A fatal logic error causes a program to execute and produce incorrect results. - True

Logical errors are the most difficult to fix. They occur when the program runs without crashing, but produces an incorrect result. The error is caused by a mistake in the program’s logic.

7. A repetition structure performs the statements in its body while some condition remains true - True

Repetition structures, or loops, are used when a program needs to repeatedly process one or more instructions until some condition is met, at which time the loop ends.

8. Function float converts its argument to a floating-point value. - True

The float() method is used to return a floating point number from a number or a string.

9. Function call range( 1, 10 ) returns the sequence 1 to 10, inclusive. - False

The function returns the sequence from 1 to 9 inclusive.

10. Sentinel-controlled repetition uses a counter variable to control the number of times a set of instructions executes. - False

Sentinel-controlled repetition is sometimes called indefinite repetition because it is not known in advance how many times the loop will be executed.

11. The symbol = tests for equality. - False

Operator = is for assignment , Operator == tests for equality.