Machine Learning: Random Forest with Python from Scratch - Strings

Machine Learning: Random Forest with Python from Scratch - Strings

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial covers the DMAS rule for evaluating mathematical expressions, followed by an introduction to strings in Python. It explains string operations such as concatenation and slicing, and discusses the immutability of strings. The tutorial also demonstrates how to use string functions and encourages reading documentation for better understanding.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the correct order of operations according to the DMAS rule?

Addition, Subtraction, Multiplication, Division

Division, Multiplication, Addition, Subtraction

Subtraction, Addition, Multiplication, Division

Multiplication, Division, Addition, Subtraction

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a string in Python?

A sequence of numbers

A sequence of characters

A sequence of symbols

A sequence of boolean values

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you declare a string in Python?

Using parentheses

Using quotation marks

Using curly braces

Using square brackets

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does string concatenation mean?

Dividing one string by another

Multiplying one string by another

Subtracting one string from another

Adding two strings together

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a correct way to concatenate two strings in Python?

Using the division operator

Using the plus operator

Using the minus operator

Using the multiplication operator

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is string slicing?

Changing the case of a string

Reversing a string

Extracting a part of a string

Duplicating a string

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you access the first character of a string in Python?

Using index 1

Using index 0

Using index -1

Using index 2

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