On the most recent district-wide math exam, a random sample of students earned the following
scores:
95, 45, 37,82, 90, 100, 91,78, 67, 84, 85, 85, 82, 91,
93,92, 76, 84, 100, 59, 92, 77, 68, 88
What is the mean score, rounded to the nearest hundredth?
What is the median score?

Here are the 30 best lifetime baseball batting averages of all time, arranged in order from lowest to highest: 0.319, 0.329, 0.330, 0.331, 0.331, 0.333, 0.333, 0.333, 0.334, 0.334, 0.334, 0.336, 0.337, 0.338, 0.338, 0.338, 0.340, 0.340, 0.341, 0.341, 0.342, 0.342, 0.342, 0.344, 0.344, 0.345, 0.346, 0.349, 0.358, 0.366 if you were to build a histogram of these data, which of the following would be the best choice of classes?