Automated electron backscattered diffraction is now being used in the study of fracture phenomena The following information on misorientation angle (degrees) was extracted from the article Observations on the Faceted Initiation Site in the Dwell Fatigue Tested Ti 6242 Alloy Crystallographic Orientation and Size Effects (Metallurgical and Materials Trans , 2006 1507 1518) a Is it true that more than 50 of the sampled angles are smaller than 15 deg , as asserted in the paper b What proportion of the sampled angles are at least 30 deg c Roughly what proportion of angles are between 10 deg and 25 deg d Construct a histogram and comment on any interesting features Class 0 5 5 10 10 15 15 20 Rel freg 177 166 Class 20 30 30 40 40 6060 90 Rel freq 194 175 136 078 044030

Question: Automated electron backscattered diffraction is now being used in the study of fracture phenomena. The following information on misorientation angle (degrees) was extracted from the

Automated electron backscattered diffraction is now being used in the study of fracture phenomena. The following information on misorientation angle (degrees) was extracted from the article "Observations on the Faceted Initiation Site in the Dwell-Fatigue Tested Ti-6242 Alloy: Crystallographic Orientation and Size Effects" (Metallurgical and Materials Trans., 2006: 1507-1518).

$Automated electron backscattered diffraction is now being used in the$

a. Is it true that more than 50% of the sampled angles are smaller than 15°, as asserted in the paper?
b. What proportion of the sampled angles are at least 30°?
c. Roughly what proportion of angles are between 10° and 25°?
d. Construct a histogram and comment on any interesting features.

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