Here is a data set summarized as a stem-and-leaf plot: Stem Leaf 6 1 2 2 3 4 9 7 2 2 2 2 4 9 9 8 4 7 9 5 6 9 Key: 4|5 = 45 How many data values are in this data set? What is the minimum value in the last class? How many of the original values are greater than or equal to 80? What percent of values are greater than or equal to 80? Answer with a percentage rounded to the nearest whole number.

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