According to the past data, 20% of all telephones of a certain type are submitted for...

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According to the past data, 20% of all telephones of a certain type are submitted for...

According to the past data, 20% of all telephones of a certain type are submitted for service while under warranty. Of these, 60% can be repaired whereas the other 40% must be replaced with new units. If a company purchases 10 of these telephones, what is the probability that,

a.Two telephones will be submitted for service under warranty?

b.At most 3 telephones will be submitted for service under warranty?

c.Two telephones will end up being replaced under warranty?

d.One telephone will end up being repaired under warranty?

math Statistics-And-Probability

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Answer 1

Answer #1

Sokuhion Nee& sosvice 2- No nleed ol Servic x=2) 0.gol = p(x 9) = 0.877 o.o ) 0.92) 0.147

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Twenty percent of all telephones of a certain type are submitted for service while under warranty....

Thirty percent of all telephones of a certain type are submitted for service while under warranty....

Twenty percent of all telephones of a certain type are submitted for service while under warranty....

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According to the past data, 20% of all telephones of a certain type are submitted for...

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