3. Let C So(x) = exp{-(A²+² +DDF-D)}; logD)}, Dx where A, B, C, D are positive. a. Show that the function So is a survival function. b. Derive a formula for Sz(t). c. Derive a formula for . log

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A:

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A:

Q: part 4

A: Solution: It is given here:

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