Question
If a coin is tossed 10 times then what is the
probability of getting three heads?Solution
Total sample spaces = 2¹⁰ Total favourable events N(P) = ¹⁰C₃ Probability (E) = (N(P))/(N(S)) = (¹⁰C₃ )/(2¹⁰)= (¹⁰C₃ )/(2^5. 2⁵) = 120/(32 × 32) = 15/128
More Probability Questions
What will come in place of (?) Question mark in the given number series.
5, 26, 68, 131, 215, 320, ?
1, 7, 37, 187, 937, ?
8, ?, 29, 57, 113, 225
30, 42, 54, 66, ?, 90
- What will come in place of the question mark (?) in the following series?
29, 32, 41, 68, ?, 392 226 231 466 ? 5606 28031
- What will come in place of the question mark (?) in the following series?
3, 10, 29, 66, 127, ? What will come in place of the question mark (?) in the following series?
102, 111, 136, 185, 266, ?
15.975 ×27.825 + (76.01)² + 12.98×18.426 = ?+ (79.09)²
23 45 89 155 ? 353
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