For the distribution of the following 30 scores, (a) Make a grouped frequencies histogram of the scores

Question:

For the of the following 30 scores,
(a) Make a grouped frequencies histogram of the scores as they are (intervals 0-4.9, 5-9.9, 10-14.9, etc.);
(b) Carry out a square-root transformation.
(c) Make a grouped histogram of the transformed scores (0-.9, 1-1.9, etc.):
9, 28, 4, 16, 0, 7, 25, 1, 4, 10, 4, 2, 1, 9, 16, 11, 12, 1, 18, 2, 5, 10, 3, 17, 6, 4, 2, 23, 21, 20
Distribution
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