We appreciate your visit to 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. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
To find out what percentage of the people surveyed cannot swim, we'll look at the relative frequency table provided:
The table shows relative frequencies for "Can swim" and "Cannot swim" for both adults and children. We want to focus on the category "Cannot swim."
- The relative frequency of adults who cannot swim is 0.06.
- The relative frequency of children who cannot swim is 0.12.
To find the total relative frequency of people who cannot swim, we add these two values together:
[tex]\[ \text{Total relative frequency of people who cannot swim} = 0.06 + 0.12 = 0.18 \][/tex]
This total relative frequency of 0.18 indicates the proportion of people surveyed who cannot swim. To express this as a percentage, we convert the relative frequency to a percentage by multiplying it by 100:
[tex]\[ \text{Percentage of people who cannot swim} = 0.18 \times 100 = 18\% \][/tex]
Therefore, 18% of the people surveyed cannot swim. The correct answer is B. 18%.
The table shows relative frequencies for "Can swim" and "Cannot swim" for both adults and children. We want to focus on the category "Cannot swim."
- The relative frequency of adults who cannot swim is 0.06.
- The relative frequency of children who cannot swim is 0.12.
To find the total relative frequency of people who cannot swim, we add these two values together:
[tex]\[ \text{Total relative frequency of people who cannot swim} = 0.06 + 0.12 = 0.18 \][/tex]
This total relative frequency of 0.18 indicates the proportion of people surveyed who cannot swim. To express this as a percentage, we convert the relative frequency to a percentage by multiplying it by 100:
[tex]\[ \text{Percentage of people who cannot swim} = 0.18 \times 100 = 18\% \][/tex]
Therefore, 18% of the people surveyed cannot swim. The correct answer is B. 18%.
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