Researchers carried out a survey of fourth-, fifth-, and sixth-grade students in Michigan. Students were asked whether good BFW Publishersgrades, athletic ability, or being popular was most important to them. This two-way table summarizes the survey data.Grade4th Grade5th Grade6th GradeTotalMost ImportantGrades495069168Athletic24363898Popular19z2869Total92108135335Suppose we select one of these students at random. What's the probability that:(a) The student is a sixth grader or a student who rated good grades as important?Round your answer to 3 decimal places.Leave your answer in decimal form.(b) The student is not a sixth grader and did not rate good grades as important?Round your answer to 3 decimal places.Leave your answer in decimal form.