Question
Download Solution PDFचार फलकों पर 5, तीन फलकों पर 4, दो फलकों पर 3 और एक फलक पर 2 लिखे हुए पासे को फेंकने पर प्राप्त संख्याओं का माध्य क्या है?
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Detailed Solution
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मान लीजिए कि पासे पर एक संख्या का प्रतिनिधित्व करने वाला X यादृच्छिक चर है।
अवलोकन की कुल संख्या दस है।
P(X = 5) = \(\rm \frac{4}{10} = \frac{2}{5}\)
P(X = 4) = \(\rm \frac{3}{10} \)
P(X = 3) = \(\rm \frac{2}{10} = \frac{1}{5}\)
P(X = 2) = \(\rm \frac{1}{10} \)
माध्य(X) = \(\rm \sum x_{i}p_{i}\)
माध्य (X) = \(\rm 5 \times \frac{2}{5} + 4 \times \frac{3}{10} + 3 \times \frac{1}{5} + 2 \times \frac{1}{10} \)
माध्य(X) = \(2 + \rm \frac{20}{10} =4 \)
Last updated on Jun 18, 2025
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