Agroup surveyed a mix of people below and above 40 years old about whether or not they visit a dentist once a year. this table gives the survey results.

visit dentist yearly don’t visit dentist yearly
below 40 8 22
above 40 17 13

which table shows the relative frequency of people above 40 years old who do not visit a dentist once a year? round your answers to the nearest hundredth.

is D

                 Visit Dentist YearlyDon’t Visit Dentist Yearly

Below 40                0.27                    0.73

Above 40              0.57                      0.43

Work: 8+22=30        17+13=30     turn into a fraction then simplify to get answer;

22/30   simp= 73.0 (0.73)

13/30     simp= 43.0 (0.43)

8/30      simp= 26.667 (0.27)

17/30      simp= 56.667 (0.57)

Answer with Step-by-step explanation:

              Visit Dentist YearlyDon’t Visit Dentist Yearly

Below 40      8                                        22

Above 40      17                                 13

Relative frequency of people above 40 years old who do not visit a dentist once a year

=Number of people above 40 years old who do not visit a dentist yearly/Number of people above 40

=13/(17+13)

=13/30

=0.43

Hence, Relative frequency of people above 40 years old who do not visit a dentist once a year is:

0.43

the correct answer to your question is a. 4^4

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