2.3.3 quiz: two - way frequency tables\nquestion 3 of 10\nin a survey, 250 adults and children were asked…

2.3.3 quiz: two - way frequency tables\nquestion 3 of 10\nin a survey, 250 adults and children were asked whether they know how to swim. the survey data are shown in the relative frequency table.\nwhat percentage of the people surveyed can swim?\na. 34%\nb. 82%\nc. 48%\nd. 18%

2.3.3 quiz: two - way frequency tables\nquestion 3 of 10\nin a survey, 250 adults and children were asked whether they know how to swim. the survey data are shown in the relative frequency table.\nwhat percentage of the people surveyed can swim?\na. 34%\nb. 82%\nc. 48%\nd. 18%

Answer

Explanation:

Step1: Identify relevant relative - frequencies

We need to find the sum of the relative - frequencies of adults who can swim and children who can swim. The relative - frequency of adults who can swim is 0.34 and the relative - frequency of children who can swim is 0.48.

Step2: Calculate the sum

$0.34 + 0.48=0.82$

Step3: Convert to percentage

To convert the decimal 0.82 to a percentage, we multiply by 100. So, $0.82\times100 = 82%$

Answer:

B. 82%