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According to a recent study, 50% of households from a certain large region no longer have a landline and irselected at random.a. What is the probability that all three have only cell phone service?b. What is the probability that at least one has only cell phone service?

According to a recent study 50 of households from a certain large region no longer have a landline and irselected at randoma What is the probability that all th class=

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Answer:

[tex]0.125[/tex]

Explanation:

Here, we want to calculate the probability that all three have only cell phone service

The probability that a household has only cell phone service is 50% which is the same as 1/2 or 0.5

The probability that all three have only cell phone services will be:

[tex]0.5\text{ }\times0.5\text{ }\times0.5\text{ = 0.125 or 12.5\%}[/tex]

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