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Choose the correct alternative: A letter is taken at random from the letters of the word ‘ASSISTANT’ and another letter is taken at random from the letters of the word - Mathematics

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प्रश्न

Choose the correct alternative:

A letter is taken at random from the letters of the word ‘ASSISTANT’ and another letter is taken at random from the letters of the word ‘STATISTICS’. The probability that the selected letters are the same is

पर्याय

  • `7/45`

  • `17/90`

  • `29/90`

  • `19/90`

MCQ
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उत्तर

`19/90`

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 12: Introduction to probability theory - Exercise 12.5 [पृष्ठ २६६]

APPEARS IN

सामाचीर कलवी Mathematics - Volume 1 and 2 [English] Class 11 TN Board
पाठ 12 Introduction to probability theory
Exercise 12.5 | Q 8 | पृष्ठ २६६

संबंधित प्रश्‍न

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  1. P(A ∩ B)
  2. P(A|B)
  3. P(B|A)

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Box Marble colour
  Red White Black
A 1 6 3
B 6 2 2
C 8 1 1
D 0 6 4

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Choose the correct alternative:

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Choose the correct alternative:

Let A and B be two events such that `"P"(bar ("A" ∪ "B")) = 1/6, "P"("A" ∩ "B") = 1/4` and `"P"(bar"A") = 1/4`. Then the events A and B are


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Read the following passage:

Recent studies suggest the roughly 12% of the world population is left-handed.

Depending upon the parents, the chances of having a left-handed child are as follows:

A :  When both father and mother are left-handed:
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B :  When father is right-handed and mother is left-handed:
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C :  When father is left-handed and mother is right-handed:
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D :  When both father and mother are right-handed:
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Assuming that P(A) = P(B) = P(C) = P(D) = `1/4` and L denotes the event that child is left-handed.

Based on the above information, answer the following questions:

  1. Find `P(L/C)` (1)
  2. Find `P(overlineL/A)` (1)
  3. (a) Find `P(A/L)` (2)
    OR
    (b) Find the probability that a randomly selected child is left-handed given that exactly one of the parents is left-handed. (2)

Compute P(A|B), if P(B) = 0.5 and P (A ∩ B) = 0.32.


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