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A bag contains 4 black counters and n white counters. Two counters are taken from the bag at random without replacement. The probability of 2 white counters is 1/12 Which of the following equations must be solved to find the value of n? a) 2n2 – 2n – 5 = 0 b) 11п? — 23п -30 — 0 c) 11n? – 19n – 12 = 0 d) 19n? – 20n – 12 = 0 d) c) b) a) OOOO

A bag contains 4 black counters and n white counters. Two counters are taken from the bag at random without replacement. The probability of 2 white counters is 1/12 Which of the following equations must be solved to find the value of n? a) 2n2 – 2n – 5 = 0 b) 11п? — 23п -30 — 0 c) 11n? – 19n – 12 = 0 d) 19n? – 20n – 12 = 0 d) c) b) a) OOOO

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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1 The probability that I miss the bus to work on any day is 0.1.Whether I catch the bus on any day is independent of whether I catch the bus on any other. For Monday and Tuesday last week, what is the probability that I missed the bus on both days. 0.81 0.1 0.01 0.9 2 A bag contains 4 black counters and n white counters. Two counters are taken from the bag at random without replacement. The probability of 2 white counters is 1/12 Which of the following equations must be solved to find the value of n? a) 2n2 – 2n – 5 = 0 b) 11п? — 23п -30 — 0 c) 11n2 19n2 – 20n – 12 = 0 19п — 12 — 0 d) d) c) b) a) OOO0
Transcribed Image Text:1 The probability that I miss the bus to work on any day is 0.1.Whether I catch the bus on any day is independent of whether I catch the bus on any other. For Monday and Tuesday last week, what is the probability that I missed the bus on both days. 0.81 0.1 0.01 0.9 2 A bag contains 4 black counters and n white counters. Two counters are taken from the bag at random without replacement. The probability of 2 white counters is 1/12 Which of the following equations must be solved to find the value of n? a) 2n2 – 2n – 5 = 0 b) 11п? — 23п -30 — 0 c) 11n2 19n2 – 20n – 12 = 0 19п — 12 — 0 d) d) c) b) a) OOO0
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