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The Frequency of Color Blindness (Dyschromatopsia) in the Caucasian American

Question 14

Multiple Choice

The frequency of color blindness (dyschromatopsia) in the Caucasian American male population is estimated to be about 8%. Let's call X the number of color-blind individuals in a random sample of 8 Caucasian American males. The table gives the probability distribution for X.
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X012345678P(X) 0.5130.3570.1090.0190.0020.0000.0000.0000.000\begin{array} { | l | l | l | l | l | l | l | l | l | l | } \hline X & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 \\\hline P ( X ) & 0.513 & 0.357 & 0.109 & 0.019 & 0.002 & 0.000 & 0.000 & 0.000 & 0.000 \\\hline\end{array} Which is the correct notation for representing the probability of getting at least 4 color-blind individuals in the sample?


A) P(X < 4)
B) P(X > 4)
C) P(X ?4)
D) P(X ? 4)

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