Sample space for coin toss
The sample space for a coin toss is the set of all possible outcomes of that toss.
Practice This ConceptMain explanation
Teacher explanation
For one toss of a fair coin, the sample space is {H, T}. For two coin tosses, order matters, so the sample space has four outcomes: HH, HT, TH, and TT. Writing the full sample space is the first step before finding probability.
Example
For two coin tosses, the sample space is {HH, HT, TH, TT}.
Simple analogy
One toss, two outcomes; two tosses, four ordered outcomes.
Common confusion
Students often miss ordered outcomes like HT and TH and write only three outcomes.
Exam tip
When more than one coin is tossed, write outcomes in order so you do not miss any case.
Answer writing and exam use
1-mark use
Write the exact meaning of sample space for coin toss in one clean line.
2-mark use
Define sample space for coin toss and add one example or condition.
3-mark use
Explain sample space for coin toss, show the method or example, and mention the common mistake.
Practice this concept with focused MCQs
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