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Thirty people are eligible to win cash prizes. The number of each cash award prize is shown in the table. Prizes will be given out randomly one at a time. What is the probability of the first person winning the $50 prize?

Robin tosses two number cubes 100 times and gets a pair of 3s 18 times. What is the experimental probability that she will roll a pair of 3s on her next toss?

Mrs. Little creates a boxplot for the test scores on her latest math test. She finds that the interquartile range is 20 points. What does this mean?