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# A fair coin is tossed four times, and the sequence of heads and tails is observed. (a)

ISBN: 9780321923271 41

## Solution for problem 1.1-4 Chapter 1.1

Probability and Statistical Inference | 9th Edition

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Problem 1.1-4

A fair coin is tossed four times, and the sequence of heads and tails is observed. (a) List each of the 16 sequences in the sample space S. (b) Let events A, B, C, and D be given by A = {at least 3 heads}, B = {at most 2 heads}, C = {heads on the third toss}, and D = {1 head and 3 tails}. If the probability set function assigns 1/16 to each outcome in the sample space, find (i) P(A), (ii) P(A B), (iii) P(B), (iv) P(A C), (v) P(D), (vi) P(A C), and (vii) P(B D).

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Class 1 - 1/16/18 • Terminology o Response (dependent variable): the variable of interest to be measured in the experiment o Factors (independent variables): variables whose effect on the response is of interest to the experiment • Quantitative factors; numerical scale • Qualitative (categorical) factors; non-numerical...

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