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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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Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?
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The suare root of 9x plus 7 plus the square rot of 2x equall to 7
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Tom drove 206 miles in 3.9 hours. estimate his average speed.
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