Answer
Tally: four sticks
Class Frequency = $4$
Work Step by Step
Identify and count the numbers that fall within the interval $16-20$.
They are: $17, 20, 20,$ and $18$.
Thus, tally will be four sticks, and the Class Frequency is $4$.
Basic College Mathematics (9th Edition)
by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.
Published by
Pearson
ISBN 10:
0321825535
ISBN 13:
978-0-32182-553-7
Chapter 10 - Statistics - 10.3 Frequency Distributions and Histograms - 10.3 Exercises - Page 733: 26
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