In a survey, 250 adults and children were asked whether they know how to swim. The survey data are shown in the relative frequency table. Can swim Cannot swim TotalAdults 0.34 0.06 Children 0.48 0.12 Total What percentage of the people surveyed cannot swim?A.18%B.12%C.40%D.6%SUBMITarrow_backPREVIOUS
Question
In a survey, 250 adults and children were asked whether they know how to swim. The survey data are shown in the relative frequency table. Can swim Cannot swim TotalAdults 0.34 0.06 Children 0.48 0.12 Total What percentage of the people surveyed cannot swim?A.18%B.12%C.40%D.6%SUBMITarrow_backPREVIOUS
Solution
To find the percentage of people who cannot swim, you need to add the relative frequencies of adults and children who cannot swim.
According to the table, 0.06 of adults and 0.12 of children cannot swim.
So, you add these two numbers: 0.06 + 0.12 = 0.18
Therefore, 18% of the people surveyed cannot swim. So, the answer is A. 18%.
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