Explain how you would solve the problem below using PEMDAS. Explain what you would do first, second, third, fourth and so on to solve. Use your PEMDAS vocabulary and tell us exactly how you would solve this problem.
5 – 4 ÷ 2 + 7

Identify the parent function that can be used to graph the function f(x)=3(x-9)2

Given δjkl : δxyz, find x. a)10 b)12 c)16 d)20

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) ).