MorrisAshley
19.01.2020 •
Mathematics
2. in a survey of 3005 adults aged 57 through 85 years, it was found that 81.7% of them used at least one prescription medication.
a. how many of the 3005 subjects used at least one prescription medication?
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Ответ:
2455 subjects.
Step-by-step explanation:
In a survey the total number of people aged 57 to 85 years = 3005
The percentage of the people those used at least one prescription medication = 81.7%
The number of the subjects used at least one prescription medication
= 81.7% of 3005
=
= 0.817 × 3005
= 2455.085 ≈ 2455 subjects.
2455 subjects used at least one prescription medication.
Ответ: