The daily online newspaper America at a Glance has just published an article detailing a study of 50 students who completed preparation programs for a nationwide standardized test. The following histogram, which summarizes the mathematics test score information for the 50 sampled students, appeared in the article. Relative frequency 0.4+ 0.32 0.3+ 0.26 0.22 0.2+ 0.12 0.1- 0.08 550 600 650 700 750 800 Mathematics test score Based on the histogram, find the proportion of mathematics test scores in the sample that are greater than or equal to 600. Write your answer as a decimal, and do not round your answer. X 5