4. a recent poll showed that 87.4% of people own a cell phone. what is the probability that someone does not own a cell phone? a. 1.260 b. 0.913 c. 0.126 d. 0.874

0.126. A recent poll showed that the probability that someone does not own a cell phone is 0.126 which represent the 12.6% of the poll.

Let's supposed that the poll was made to 100 people, which means 87.4 people own a cell phone. On the other hand, the people who do not own a cell phone is 100 - 87.4 = 12.6 pleople.

The key to solve this problem is using the equation of probability where n(A) is the number of favorables outcomes and n is the total number of outcomes.

The probability that someone does not own a cellphone is 12.6 peoples (favorables outcomes) from a total of 100 people (total outcomes).

Solving the equation:

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answer