Please see attached, thank you.

Answered Same DayDec 29, 2021

Answer To: Please see attached, thank you.

Robert answered on Dec 29 2021

125 Votes

A) P(18,780= P(18,780-20,700/750= P(-2.56= P(0) + P(0= 0.4948 + 0.4959
= 0.9907
B) P(X<19,837.50 or X> 22,267.50)
= P(Z<19,837.50-20,700/750) + P(Z>22,267.50-20,700/750)
= P(Z<-1.15) + P(Z>2.09)
= P(Z>1.15) [by symmetry] +...

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