Question: TEACHER ATTITUDES A nonprofit organization conducted a survey of 2140 metropolitan-area teachers regarding their beliefs about educational problems. The following data were obtained: 900 said that lack of parental support is a problem. 890 said that abused or neglected children are problems. 680 said that malnutrition or students in poor health is a problem. 120 said that lack of parental support and abused or neglected children are problems. 110 said that lack of parental support and malnutrition or poor health are problems. 140 said that abused or neglected children and malnutrition or poor health are problems. 40 said that lack of parental support , abuse or neglect, and malnutrition or poor health are problems. What is the probability that a teacher selected at random from this group said that lack of parental support is the only problem hampering a student's schooling? Hint: Draw a Venn diagram.