Practice A school wanted to understand if there was an association between grade level and participation in a sport. They surveyed a group that consisted of 9th grade and 12th grade students and found the following results: (a) Find the probability, to the nearest hundredth, that a student picked at random from this survey plays a sport. 9th Grade Sport 34 No Sport 20 12th Grade 30 38 (b) Find the probability, to the nearest hundredth, that a person plays a sport given they are in 9th grade. (c) Is playing a sport independent of the grade a student is in? Explain your yes or no answer.