question archive Forty-five percent of households say they would feel secure if they had? $50,000 in savings
Forty-five percent of households say they would feel secure if they had? $50,000 in savings
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Forty-five percent of households say they would feel secure if they had? $50,000 in savings. You randomly select 8 households and ask them if they would feel secure if they had? $50,000 in savings. Find the probability that the number that say they would feel secure is? (a) exactly? five, (b) more than? five, and? (c) at most five.
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Binomial problem with ,n=8
p=1/2(50%)
Find the probability that the number that say they would feel secure if they $50,000 savings.
a)Exactly five
p(Exactly five)=8C5(1/2)8
=0.21875
b) More than five
P(More than five)=1-binomcdf(8.1/2.4.)=0.3633
c)At most five
P(At most five)= BinomCdf (8,1/2,4)=0.8555
