The answer would be D. H<span>ow long are the songs you practice playing on your instrument?
Statistical questions are ones that will show variability. The first three questions will have a straight answer. The last one however will have data that varies, since most likely every song is not the same length.
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The way you put it is confusing. I'll answer but the way you put it was confusing to me.
See attachment for math work and answer.
