Which row operation will triangularize this matrix? 1 0 1 | 1 0 1 1 | 6 2 0 1 | 1 a) r1-r3 b)2r2-r3 c)-2r1+r3 d)2r1+r3 e)3r1+r3

11. minitab software was used to find the lsrl for a study between x=age and y=days after arthroscopic shoulder surgery until an athlete could return to their sport. use the output to determine the prediction model and correlation between these two variables. predictor coef se coef t p constant -5.054 4.355 -1.16 0.279 age 0.2715 0.1427 1.9 0.094 r-sq = 31.16%

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1