13)
µ = 100
σ = 11
right tailed
P ( X ≥120)
Z =(X - µ ) / σ = (120.00-100) / 11=1.818
P(X ≥120.000) = P(Z ≥1.818) =P ( Z <-1.818) = 0.0345
excel formula for probability from z score is =NORMSDIST(Z)
so, approximate number of people = 323000000*0.0345 = 11149370.201098
or 11150000 people
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13. +-6.66 points WaneFMAC7 9.5.033. My Notes IQ scores (as measured by the Stanford-Binet intelligence test) in a certain country are normally distributed with a mean of 100 and a standard deviation...
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