Question
Download Solution PDFएक व्यक्ती A 30% वेळ सत्य बोलतो आणि स्वतंत्रपणे व्यक्ती B 40% वेळ सत्य बोलतो. दोघेही एकमेकांच्या विरोधात असण्याची किमान संभाव्यता किती आहे?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFस्पष्टीकरण:
A: A सत्य सांगतो, Ac = A असत्य बोलतो
B: B सत्य बोलतो, Bc = B असत्य बोलतो
तर P(A) = 30% = \(\frac{30}{100}\) = \(\frac{3}{10}\)
आणि P(Ac) = 1 - \(\frac{3}{10}\) = \(\frac{7}{10}\)
त्याचप्रमाणे,
P(B) = 40% = \(\frac{40}{100}\) = \(\frac{4}{10}\)
आणि P(Bc) = 1 - \(\frac{4}{10}\) = \(\frac{6}{10}\)
त्यामुळे ते एकमेकांना विरोध करतील अशी किमान शक्यता म्हणजे एक सत्य आणि दुसरे असत्य
= P(A) × P(Bc) + P(B) × P(Ac)
= \(\frac{3}{10}\) × \(\frac{6}{10}\) + \(\frac{7}{10}\) × \(\frac{4}{10}\) = \(\frac{18}{100}+\frac{28}{100}\) = \(\frac{46}{100}\) = 0.46
पर्याय (3) योग्य आहे
Last updated on Jun 22, 2025
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