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Mathematics, 21.06.2019 16:00
Determine the mean and variance of the random variable with the following probability mass function. f(x)=( 729divided by 91) (1 divided by 9) superscript x baseline comma x equals 1,2,3 round your answers to three decimal places (e.g. 98.765).
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Mathematics, 21.06.2019 23:00
Charlie tosses five coins.what is the probability that all five coins will land tails up.
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Mathematics, 22.06.2019 00:30
You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25
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