question 1 Sociologists say that 80% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention)

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question 1

Sociologists say that 80% of married women claim that their husband's mother is the biggest bone of contention in their marriages (sex and money are lower-rated areas of contention). Suppose that eight married women are having coffee together one morning. Find the following probabilities. (For each answer, enter a number. Round your answers to three decimal places.)

(a) All of them dislike their mother-in-law.

 

 

(b) None of them dislike their mother-in-law.

 

 

(c) At least six of them dislike their mother-in-law.

 

 

(d) No more than five of them dislike their mother-in-law.

 

 

 

question 2

Innocent until proven guilty? In Japanese criminal trials, about 95% of the defendants are found guilty. In the United States, about 60% of the defendants are found guilty in criminal trials. (Source: The Book of Risks, by Larry Laudan, John Wiley and Sons) Suppose you are a news reporter following eleven criminal trials. (For each answer, enter a number.)

(a) If the trials were in Japan, what is the probability that all the defendants would be found guilty? (Round your answer to three decimal places.)

 

 

What is this probability if the trials were in the United States? (Round your answer to three decimal places.)

 

 

(b) Of the eleven trials, what is the expected number of guilty verdicts in Japan? (Round your answer to two decimal places.)

 verdicts

 

What is the expected number in the United Sates? (Round your answer to two decimal places.)

 verdicts

 

What is the standard deviation in Japan? (Round your answer to two decimal places.)

 verdicts

 

What is the standard deviation in the United States? (Round your answer to two decimal places.)

 verdicts