Understanding Profit, Loss, and Discount
Profit is the amount of money that a business earns after deducting all its expenses.
Loss is the amount of money that a business loses...
Understanding the Basics of Squares in Mathematics
Calculating Areas and Perimeters of Squares
Area of a square: A = s^2, where s is the length of one of its sides
Perimeter of a...
Mastering Percentages: Solving Basic Percentage Problems
Percentage is a way of expressing a quantity or amount as a fraction of 100.
It is represented by the symbol "%".
For example,...
A Guide to Averages: Understanding and Calculating the Mean
Average is a term used in mathematics to describe a central value or a typical value of a set of numbers. It is also...
Permutation and Combination
Permutation and Combination
Concept
Formula
Explanation
Permutation (without repetition)
P(n, r) = n! / (n - r)!
Calculates the number of ways to arrange r items from a set of...
Mastering Decimal Operations: Addition, Subtraction, Multiplication, and Division
Decimals (adding, subtracting, multiplying, and dividing)
Fractions (adding, subtracting, multiplying, and dividing)
Steps for Decimals Operation
Adding Decimals:
Align the decimal points of the two numbers.
Add the digits...
Basics of Probability
Concept
Definition
Formula
Example
Sample Space
The set of all possible outcomes of an experiment
N/A
Rolling a fair six-sided die: {1, 2, 3, 4, 5, 6}
Event
A subset of the sample...
Understanding Median and Mode
Median
It is a statistical measure that represents the middle value of a dataset.
To find the median, you first need to arrange the data...
Logarithm
Basics of Logarithms
Calculate Sale Price and Cost Price with Examples
Sale price
Sale Price = Original Price - (Discount Rate x Original Price)
"Original Price" is the price before the discount
"Discount Rate" is the percentage discount.
Question...
