In order to receive credit for these problems, you must show the process by which you arrived at your answers.
Textbook attached:
Chapter 4: 8 (b-f), 50, 58 (a-d)*, 74
Chapter 5: 3, 12**
Note for 58(d) – when they speak of extreme 0.1% of birth weights, they mean both the largest and smallest
Notes for Problem 5.12:
For 5.12 (b) – While you can calculate the marginal PMF for x (you did the integral for part a), you should use the following for the marginal PMF of y (the integral required to find the marginal is not simple):
f subscriipt y left parenthesis y right parenthesis space equals fraction numerator 1 over denominator left parenthesis 1 plus y right parenthesis squared end fraction space f o r space y space greater or equal than space 0
for 5.12 (c) – set up but do not solve the required integral to obtain the probability.
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