Question
A bag contains 4 yellow, 5 black and 7 white flowers.
Three flowers are drawn randomly. Quantity I: What is the probability that all three flowers are of white colour? Quantity II: What is the probability that all three flowers are of different colour? In each of the following questions, read the given statements and compare the two given quantities on it basis. Give answer:Solution
Quantity I: n(s) = ¹⁶C₃ = (16 × 15 × 14)/(3 × 2 × 1) = 560 n(E) = ⁷C₃ = (7 × 6 × 5)/(3 × 2 × 1) = 35 P(E) = 35/560 = 35/560 = 1/16 Quantity II. n(s) = ¹⁶C₃ = (16 × 15 × 14)/(3 × 2 × 1) = 560 n(E) = ⁴C₁ × ⁵C₁ × ⁷C₁ P(E) = 140/560 = 1/4 Hence, Quantity I < Quantity II
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The use of combination of 1’s and 0’s is feature of which of the following type of computer language?
Which of the following allows user authentication through fake identity?
Which printing technology uses tiny ink droplets propelled onto the paper?
What does 'BIOS' stand for in a computer system?
Which device is commonly used to read barcodes into a computer?
A device needed to communicate with computers using telephone lines is?
Which combination of keys needs to be pressed to make a percent sign?
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