Frequency Distribution with Decimals

Divide the range by the number of classes (let's use 5 in this case): (30.91 – 19.55) / 5 = 2.272. So the class width is 2.28 (round up to the next value, in hundredths). Here's the frequency distribution. I have also included the class boundaries, needed for the histogram, and the midpoints. The boundaries and midpoints should not be rounded ... ................
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