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- Want to understand practice scenarios from my tips book on non/experimental designs and threats to internal and external validity.arrow_forwardD2L Course Sched X | zm MATH 140 ✗ Math 140 AC2 × Untitled docun X APznzaZOmoE X adidas Samba × |_ Math 140 AC2 × Home - Google × b Home | bartleb × | + С doc-08-9s-prod-00-apps-viewer.googleusercontent.com/viewer2/prod-00/pdf/4b40ij3n5ssib10rfbdvgd4hc0nkjh9f/0972m4636 vecpvn6ctclvph34kfeur7... Q Update: III APznzaZOmoEKtnM4eg2YA5rwDV97bDw0GG39cSO6IEGFlaYSoS4iHO... MT Check In Pat 1 2 20 for x=0 G(x)=15+ 300arrow_forwardLet can be a series with positive terms such n=1 that the sequence (anti) of successive teams is Convergent, with limit L. (a) Prove that if OELI then Σan is divergent.arrow_forwardShow All WorkAwnsers will be checkedarrow_forward2. Consider the negative binomial distribution with parameters r,p and having pmf nb(x;r,p) = Ꮖ (* + r − ¹) p*(1 − p)² p'(1-p) x = 0, 1, 2, 3, … …. (a) Supposer 2, then show that T-1 p = X+r−1 is an unbiased estimator for p. (Hint: write out E(p), then cancel out x+r −1 inside the sum). (b) A reporter wishing to interview five individuals who support a certain candidate (for presidency?) begins asking people whether they support (S) or not support (F) the can- didate. If they observe the following sequence of responses SFFSfffffffffffSSS, esti- mate p the true proportion of people who support the candidate. How does the estimate change if the following sequence of responses were observed ssssfffffffffffffs. Does it matter to the estimate when the first four S's appear in the sequence of responses?arrow_forwardLet A = 23 231 3 54 Find a basis for Row A. Find a basis for Col A. Find a basis for Nul A. 7 in Nul A? Why or why not? 2arrow_forwardLet B = {[ ] [ -2 7 and C == { } ] [ -1 }} are bases in R². Find the coordinate vector of 2 with respect to B. Find the change of coordinates matrix P. B+C Find the change of coordinates matrix P. C+Barrow_forwardH = Find a polynomial p(t) = P2 such that P2 {p(t), 1 + 2t, 3 - 5t}. Span H, wherearrow_forward(1) Find det B. (2) Find C = (3) Let ai == Let A ====== a b c def g hi AT and det C. a b = [ a b с 4da 4e + b 4f + c and det A = 5. g h 8--8--8 g e h and = f Is S = {a1, a2, a3} linearly dependent or linearly independent? Explain your reasoning.arrow_forward2. Find the inverse of each matrix below or show that it is not invertible, state the rank for each matrix as well: (1) A = [ 352 1 2 1 12 (2) B = 242 369 9166arrow_forwardLet U, V and W be vector spaces. Let S : U → V and T : V → W be linear transformations. Define R: U -> W by letting R(u) T(S(u)) for all u Є U. (1) Show that R is a linear transformation. = (2) Show that if S and T are one-to-one, then R is one-to-one.arrow_forwardThank you.arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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