They asks 74 citizens in a survey if they attended the concerts the plays or the art exhibits and whether or not they were inexpensive He obtained the following Inexpensive Art Exhibits Plays Concerts Total Expensive 14 12 13 39 2 25 18 35 Total 16 37 21 74 Which of the following statements are true about this table of data More than one answer may be correct check all that apply The statement Among the 21 people who attended concerts people surveyed thought it was expensive is an example of conditional relative frequency 13 21 The statement 25 attended plays and thought they were inexpensive is an example of joint relative frequency 35 The statement 3 people surveyed thought their event was inexpensive is an example of marginal relative frequency 74 This table is not an example of the principle of independence This table is an example of the principle of independence None of these statements are correct