A group 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.
2 answers:
Answer with Step-by-step explanation:
Visit Dentist Yearly Don’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
Answer: is D
Visit Dentist Yearly Don’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)
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