Question 277664: 35% of adults say cashews are their favorite kind of nut. You randml select 12 adultseach to name his orherfavorit nut. Findthe probablility that the numberwho say cashews are their favorite nut is (a) exactly tree, (b) at least 4 and (c) at most two. IF CONVENIENT, USE TECHNOLOGY TOFINDTHE PROBABLITIES.
(A) p(3)=
(B) P(X 4)=
(C) P(X 2)=
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! 35% of adults say cashews are their favorite kind of nut. You randml select 12 adultseach to name his orherfavorit nut. Findthe probablility that the numberwho say cashews are their favorite nut is (a) exactly tree, (b) at least 4 and (c) at most two. IF CONVENIENT, USE TECHNOLOGY TOFINDTHE PROBABLITIES.
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Binomial Problem with n = 12 ; p = 0.35
Using TI-84 calculator:
(A) p(3)= binompdf(12,0.35,3) = 0.1954..
(B) P(X>=4)= 1 - binomcdf(12,0.35,3) = 0.6533
(C) P(X<=2)= binomcdf(12,0.35,2) = 0.0424
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Cheers,
stan H.
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