Subject: Mathematics
Book: Maths Mastery
Probability quantifies how likely an event is to occur, calculated by favorable outcomes ÷ total possible outcomes. For instance, flipping a fair coin yields two possible outcomes: heads or tails. The probability of heads is 1/2. When rolling a six-sided die, the probability of rolling a 4 is 1/6. Basic probability helps you analyze games of chance, forecast risk in business, or interpret scientific experiments. Mastery of this fundamental approach sets the stage for more complex topics like compound events, conditional probability, and statistical inference.
If x:y = 4:5 and y:z = 2:3, what is x:z?
View QuestionA number is increased by 20% and then decreased by 20%. What is the net change?
View QuestionIf a square has a perimeter of 64 cm, what is its area?
View QuestionWhat is the HCF of 48 and 180?
View QuestionIf the sum of the angles of a polygon is 1080°, how many sides does the polygon have?
View QuestionThe sum of the reciprocals of two numbers is 1/4. If one number is 12, what is the other?
View QuestionThe area of an equilateral triangle with side length 6 cm is:
View QuestionA car travels 240 km in 4 hours. What is its average speed?
View QuestionHow many diagonals does a pentagon have?
View QuestionIf the sum of three consecutive integers is 72, what are the integers?
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