For the grouped frequency table shown below which shows salaries at a company (expressed in thousands), find the midpoint for the second row in the table:

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 1MCQ
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For the grouped frequency table shown below which shows salaries at a company (expressed in thousands), find the midpoint for the second row in the table:

Salary Interval Frequency
19-29 12
30-40 15
41-51 9
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