Mathematics, 18.10.2019 11:00, bandiadummy8595

# Four friends were born on consecutive years the sum of their ages is 62 what is the youngest friend

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Mathematics, 21.06.2019 17:40, sophiateaches053

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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Mathematics, 21.06.2019 19:30, anthonyfr10004

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

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Mathematics, 21.06.2019 23:30, bbby2

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.

Answers: 1

Four friends were born on consecutive years the sum of their ages is 62 what is the youngest friend...

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