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CBSE Class 12-science Answered

A NATURAL NUMBER X IS CHOSEN AT RANDOM FROM SET [1,2,3...100}.THE PROBABILITY THAT X+100/X>50 IS?A)1/10 B)11/50 C)11/20 D)11/48
Asked by Lekha | 25 Aug, 2012, 07:23: PM
answered-by-expert Expert Answer
 
So, required probability = 55/100 = 11/20
Answered by | 26 Aug, 2012, 08:46: PM

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CBSE 12-science - Maths
The probability that a pen manufactured by a company will be defective is 0.1. If 12 such pens are selected find the probability that i) exactly 2 will be detective ii) at least 2.will be defective iii)none will he defective
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CBSE 12-science - Maths
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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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CBSE 12-science - Maths
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Asked by armaanjain840 | 20 Dec, 2023, 05:59: PM
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CBSE 12-science - Maths
Two urns contains 1 white,6 red and 4 white,3 red balls. One of t 3 he urn is selected at random and a ball is drawn from it. Find: (1) The probability of drawing a red ball. (ii) The probability of drawing the ball from the first urn if b all drawn is red.
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CBSE 12-science - Maths
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CBSE 12-science - Maths
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CBSE 12-science - Maths
A Five digits number is written down at random. Find the probability that number is divisible by 5 and no two consecutive digits are identical.
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CBSE 12-science - Maths
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