Rosie and her 5 sisters had a party and evenly shared the cost. they spent $615 on food and $255 to rent the hall. the bad played for 4 hours and charged them $150 per hour. how much did each sister contribute?

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.

If f(x) = 3x-2 and g(x) =2x+1 find (f-g)(x)

Consider the linear model for a two-stage nested design with b nested in a as given below. yijk=\small \mu + \small \taui + \small \betaj(i) + \small \varepsilon(ij)k , for i=1,; j= ; k=1, assumption: \small \varepsilon(ij)k ~ iid n (0, \small \sigma2) ; \small \taui ~ iid n(0, \small \sigmat2 ); \tiny \sum_{j=1}^{b} \small \betaj(i) =0; \small \varepsilon(ij)k and \small \taui are independent. using only the given information, derive the least square estimator of \small \betaj(i) using the appropriate constraints (sum to zero constraints) and derive e(msb(a) ).