Each person in a group of college students was identified by graduating year and asked when he or she preferred taking classes: morning, afternoon, or evening. the results are shown in the table. find the probability that the student preferred morning classes given he or she is a junior. round to the nearest thousandth. survey of class times freshman sophomore junior senior morning 20 14 16 17 afternoon 5 10 2 7 evening 15 15 8 14