..1 Verizon? 1:24 PM online.pcc.edu Question 7 (1 point) 0.65own cell phone unde

Question

..1 Verizon? 1:24 PM online.pcc.edu Question 7 (1 point) 0.65own cell phone under 18 NOT own cell phone 0.25 own cell phone 0.79 0.45 18 -65 NOT own cell phone 0.44/ own cell phone over 65 NOT own cell phone A population consist of 25% under the age of 18, 45% in age of 18 to 65 and the rest over the age of 65 In the age group 18 and under 65% own a cell phone, while in the 18 to 65 group 79% own a cell phone. The over the age of 65 group 44% own a cell phone A person is over the age of 65. What is the probability this person does not own a cell phone? Write your answer as the exact decimal if the number is less than or equal to the ten- thousandths place, or round to the ten-thousandths place if the decimal is longer

Explanation / Answer

A = does not own cell phone
B = over age of 65

we need P(A|B) = 1 - 0.44
= 0.56

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