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 determine the percentage of the people surveyed who cannot swim, we need to follow a structured approach, focusing on the given relative frequencies:
1. Identify the given relative frequencies:
- For adults who cannot swim: 0.06
- For children who cannot swim: 0.12
2. Calculate the total relative frequency of people who cannot swim:
- Sum the relative frequencies of adults and children who cannot swim:
[tex]\[
\text{Total relative frequency} = 0.06 + 0.12 = 0.18
\][/tex]
3. Convert the total relative frequency to a percentage:
- We know that:
[tex]\[
\text{Percentage} = \text{Relative frequency} \times 100
\][/tex]
- Substitute the total relative frequency:
[tex]\[
0.18 \times 100 = 18.0
\][/tex]
4. Identify the correct answer:
- The calculated percentage of people who cannot swim is 18%.
Thus, the percentage of people surveyed who cannot swim is:
[tex]\[
\boxed{18\%}
\][/tex]
This matches option C.
1. Identify the given relative frequencies:
- For adults who cannot swim: 0.06
- For children who cannot swim: 0.12
2. Calculate the total relative frequency of people who cannot swim:
- Sum the relative frequencies of adults and children who cannot swim:
[tex]\[
\text{Total relative frequency} = 0.06 + 0.12 = 0.18
\][/tex]
3. Convert the total relative frequency to a percentage:
- We know that:
[tex]\[
\text{Percentage} = \text{Relative frequency} \times 100
\][/tex]
- Substitute the total relative frequency:
[tex]\[
0.18 \times 100 = 18.0
\][/tex]
4. Identify the correct answer:
- The calculated percentage of people who cannot swim is 18%.
Thus, the percentage of people surveyed who cannot swim is:
[tex]\[
\boxed{18\%}
\][/tex]
This matches option C.
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