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Mathematics, 26.07.2019 17:10 Svetakotok
In texas, 30% of parolees from prison return to prison within 3 years. suppose 15 prisoners are released from a texas prison on parole. assume that whether or not one prisoner returns to prison is independent of whether any of the others return to prison. let the random variable x be the number of parolees out of 15 that return to prison within 3 years. what are the values of the parameters for the binomial random variable x?
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Mathematics, 21.06.2019 23:00, kj44
Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above
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In texas, 30% of parolees from prison return to prison within 3 years. suppose 15 prisoners are rele...
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