The article A Probabilistic Model of Fracture inConcrete and Size Effects on Fracture Toughness(Magazine of Concrete Res., 1996: 311320) givesarguments for why fracture toughness in concrete specimensshould have a Weibull distribution and presentsseveral histograms of data that appear well fit by superimposedWeibull curves. Consider the following sampleof size n 5 18 observations on toughness for highstrengthconcrete (consistent with one of the histograms);values of pi 5 (i 2 .5)y18 are also given.Observation .47 .58 .65 .69 .72 .74pi .0278 .0833 .1389 .1944 .2500 .3056Observation .77 .79 .80 .81 .82 .84pi .3611 .4167 .4722 .5278 .5833 .6389Observation .86 .89 .91 .95 1.01 1.04pi .6944 .7500 .8056 .8611 .9167 .9722Construct a Weibull probability plot and comment.

Thursday, January 5 th Kim Gilbert Kimgilb@uga.edu TA Office Hours, Boyd Room 204 • Monday 11:15 am – 5:30 pm • Friday 11:15 am – 3:30 pm Case Study: Helper vs. Hinderer • If infants have no preference, then the outcome...