Consider the grouped frequency distribution below, in which the speed(in km/hr) of 40 cars are presented.ClassFreq, f Midpoint,fmfm?Cum. Freq(km/hr)m80 < 100 4100 < 120 9120 < 140 13140 < 160 9160 < 180 590360324004110108900 | 131301690Q26202500 S144500 40Efm?R135017085040Σfm------The estimated mean (in km/hr) is:O A. 138О В. 136O . 129O D. 131

here use given data table for mean mean = ∑fm∑f

Answered: The estimated mean (in km/hr) is:

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section: Chapter Questions

Problem 16SGR

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Find the mean hourly cost when the cell phone described above is used for 240 minutes.
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