A sample of 267 adults is selected The adults are classified according to voter registration status registered or not registered They are also classified according to preferred source of current events information television newspapers radio or internet sites The results are given in the contingency table below Registered Not registered Television 34 19 Newspapers Radio Internet sites 40 33 39 44 40 18 What is the relative frequency of adults in the sample who are not registered to vote Round your answer to two decimal places