1. a) A machine that produces stampings for automobile engines is malfunctioning and producing 15%defectives.Thedefectiveandnondefectivestampingsproceedfromthemachineinarandom manner. If the next six stampings are tested, which formula below calculates the probability that two of them are defective?

I) =Binomdist(3,6,0.15,false)

II) =Binomdist(2,6,0.15,false)

III) =Binomdist(2,6,0.15,True)

b.Estimatethevaluereturnedbythefollowingexcelfunction:

=AVERAGE(A1:A3)