Researchers carried out a survey of fourth-, fifth-, and sixth-grade students in Michigan. Students were asked whether good grades, athletic ability, or being popular was most important to them. This two-way table summarizes the survey data.
Suppose 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.
