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There are 100 balls in a hat. 20 of them are RED, and 80 are BLACK. 3 balls are drawn at random with replacement. The
There are 100 balls in a hat. 20 of them are RED, and 80 are BLACK. 3 balls are drawn at random with replacement. The following is the discrete probability distribution where R is the number of red balls drawn from the hat described above. What is the standard deviation for this probability distribution? (Be sure to use many (oating) decimals in your calculations, but round your answer to 3 decimal places.) CHECK
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