Suppose that there is a 1.7% chance a planet will develop life, a 2.8% chance that the life willevolve into complex organisms, a 5.5% chance that complex organisms develop into advancedcivilizations, and an X% chance that the advanced civilizations become intergalactic.If there are 2,848,343 planets, and we observe only 1 intergalactic civilization, what is theexpected value of X?Note that X is in percentage form (e.g. 30.51 not 0.3051). You can round to two decimal places, but donot round until your final answer!

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Answered: Suppose that there is a 1.7% chance a…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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QUESTION 6 Assume that babies are equally likely to be boys (B) or girls (G). Assume a woman has 4 children. Which sequence is more likely? Sequence A: GGGG or Sequence B: GBGB Sequence A Sequence B Neither. They are both equally likely. None of the above. QUESTION 7 According to the text, the standard recommendation is to perform at least how many trials of a simulation? O 10 O 25 O 100 O 1000 QUESTION 8 The Law of Large Numbers tells us that if an experiment with a random outcome is repeated a large number of times... the empirical probability of an event is likely to be close to the true probability. the theoretical probability of an event is likely to be close to the true probability.
1. It is an assertion or conjecture concerning one or more populations a. Statistical Hypothesis b. Proportional Hypothesis c. Linear Correlation d. None of the above ANSWER: RATIO: 2. A second kind of error is committed if fewer than 9 of the group surpass the 2-year period successfully, and we conclude that new vaccine is no better when it actually is. What typo cf error is in the problem? a. Type I Error b. Type II Error c. Both a and b d. Neither a nor b ANSWER:
Answer question 8.1
a. A researcher studied the effect of social influence on drinking behaviour. Sixty people were randomly assigned to one of three conditions where they were given a soft drink to consume while waiting for the experiment to supposedly begin. An experimental assistant, posing as another participant, was also given a drink. In one condition, the assistant sipped the drink at a faster rate than the research participant; in another condition, the assistant sipped the drink at the same rate as the participant; and in the last condition, the assistant sipped the drink at a slower rate than the participant. The time it took each participant to consume his or her drink was measured.
Question 4 Suppose that in a population of twins, males (M) and females (F) are equally likely to occur and that the probability that twins are identical is 0. If twins are not identical, their genders are independent (if they are identical, their genders are the same). (i) Show that, ignoring birth order, P(MM) = P(FF) = (1+0)/4 and P(MF) = (1–0)/2. (ii) Suppose that n twins are sampled. It is found that n₁ are MM, n2 are FF, and në are MF, but it is not known which twins are identical. Find the maximum likelihood estimator of 0.
Question C

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