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svetlana [45]
3 years ago
12

\250 doctors from three countries in Europe meeting in a conference to decide whether to approve a new vaccine for the flu. Amon

g these are 115 Germans, 65 French, and 70 Englishmen. We also know that, 75% of the Germans, 60% of the French and 65% of the Englishmen are in favor of using the new vaccine. (a) What is the probability that a randomly chosen doctor is in favor of the vaccine
Mathematics
1 answer:
Bezzdna [24]3 years ago
8 0

Answer:

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

Step-by-step explanation:

(a) What is the probability that a randomly chosen doctor is in favor of the vaccine

75% of 115/250 = 0.46(German).

60% of 65/250 = 0.26(French).

65% of 70/250 = 0.28(Englishmen). So

p = 0.75*0.46 + 0.6*0.26 + 0.65*0.28 = 0.683

0.683 = 68.3% probability that a randomly chosen doctor is in favor of the vaccine

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Using the concept of probability and the arrangements formula, there is a  

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  • A probability is the <u>number of desired outcomes divided by the number of total outcomes.</u>
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The number of possible arrangements from a set of n elements is given by:

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A similar problem is given at brainly.com/question/24650047

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Step-by-step explanation:

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