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CBSE Class 12-science Answered

Plz answer 8 b part
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Asked by lovemaan5500 | 07 Feb, 2020, 09:47: AM
answered-by-expert Expert Answer
straight E equals space 1 space white space ball space and space 1 space red space ball space is space selected space straight A equals bag space straight A thin space is space selected straight B equals bag space straight B thin space is space selected straight C equals bag space straight C thin space is space selected straight P left parenthesis straight A right parenthesis equals straight P left parenthesis straight B right parenthesis equals straight P left parenthesis straight C right parenthesis equals 1 third straight P left parenthesis straight E divided by straight A right parenthesis equals fraction numerator straight C presuperscript 1 subscript 1 cross times straight C presuperscript 3 subscript 1 over denominator straight C presuperscript 6 subscript 2 end fraction equals 1 fifth straight P left parenthesis straight E divided by straight B right parenthesis equals fraction numerator straight C presuperscript 3 subscript 1 cross times straight C presuperscript 2 subscript 1 over denominator straight C presuperscript 8 subscript 2 end fraction equals 3 over 14 straight P left parenthesis straight E divided by straight C right parenthesis equals fraction numerator straight C presuperscript 2 subscript 1 cross times straight C presuperscript 4 subscript 1 over denominator straight C presuperscript 9 subscript 2 end fraction equals 2 over 9 now straight P left parenthesis straight E right parenthesis equals straight P left parenthesis straight E divided by straight A right parenthesis cross times straight P left parenthesis straight A right parenthesis plus straight P left parenthesis straight E divided by straight B right parenthesis cross times straight P left parenthesis straight B right parenthesis plus straight P left parenthesis straight E divided by straight C right parenthesis cross times straight P left parenthesis straight C right parenthesis equals 401 over 1890
Answered by Arun | 08 Feb, 2020, 09:12: AM

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CBSE 12-science - Maths
Q27 Check In an experiment, 2 balls are drawn containing 4 red balls and 6 black balls. Let X be the number of red balls selected. Complete the table below: Outcome overline P(X) XP(X)
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Asked by khushisjkvm | 04 Jan, 2024, 07:14: PM
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CBSE 12-science - Maths
the question and the solution is in the attachment, can you explain how can they use combinations when combinations does not account for replacement while it is mentioned in the question that replacement is to be taken into account? And can you provide the correct answer.
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Asked by ashwinskrishna2006 | 26 Dec, 2023, 07:34: PM
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CBSE 12-science - Maths
Assuming the probability of a male birth as 1/2, find the probability that a family of 3 children will have: a) two boys and one girl b) at most two girls 
Asked by arjunsah797 | 03 May, 2022, 10:04: AM
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CBSE 12-science - Maths
Plz answer 8 b part
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Asked by lovemaan5500 | 07 Feb, 2020, 09:47: AM
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CBSE 12-science - Maths
20th sum plz
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Asked by lovemaan5500 | 08 Oct, 2019, 09:43: PM
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CBSE 12-science - Maths
14th sum and plz explain its statement
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Asked by lovemaan5500 | 03 Oct, 2019, 05:47: AM
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CBSE 12-science - Maths
21st sum plz
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Asked by lovemaan5500 | 03 Oct, 2019, 05:46: AM
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CBSE 12-science - Maths
four digit numbers are formed by using the digit 1,2,3,4 and 5 without repppearing any digit. Find the probability that a number chosen at random is an odd number
Asked by J.Jeya | 26 Jul, 2019, 09:29: AM
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CBSE 12-science - Maths
Define conditional probability
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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CBSE 12-science - Maths
If A and B are two events such that P(A) = 0.4, P(B) = 0.55 and = 0.7. Then find P(A | B) and P(B | A). 
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
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