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masya89 [10]
2 years ago
15

Jed places the letters A, B, C, D, E, F, G, H and I into a bag and picks 2 at random. What is the probability he chooses at leas

t 1 vowel?
Mathematics
1 answer:
Nadya [2.5K]2 years ago
5 0

Answer:

<h2>0.583333333333</h2>

Step-by-step explanation:

we have 9 letters

3 vowels: A , E , I

6 consonant: B, C, D, F, G , H

Consider the event V : «choosing at least 1 vowel»

\Longrightarrow \overline{V} \  \colon \  \text{choosing 2 consonant}

p(V) =1-p\left( \overline{V} \right)  =1-\frac{C^{2}_{6}}{C^{2}_{9}}=0.583333333333

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