Automated electron backscattered diffraction is nowbeing
Chapter 1, Problem 26(choose chapter or problem)
Automated electron backscattered diffraction is nowbeing used in the study of fracture phenomena. The followinginformation on misorientation angle (degrees)was extracted from the article Observations on theFaceted Initiation Site in the Dwell-Fatigue TestedTi-6242 Alloy: Crystallographic Orientation and SizeEffects (Metallurgical and Materials Trans., 2006:15071518).Class: 02,5 52,10 102,15 152,20Rel freq: .177 .166 .175 .136Class: 202,30 302,40 402,60 602,90Rel freq: .194 .078 .044 .030a. Is it true that more than 50% of the sampled anglesare smaller than 15, as asserted in the paper?b. What proportion of the sampled angles are at least30?c. Roughly what proportion of angles are between10 and 25?d. Construct a histogram and comment on any interestingfeatures.
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