## please help i dont understand this and cant figure out the correct formula to figure

Question please help i dont understand this and cant figure out the correct formula to figure it out. Suppose approximately 75% of all marketing personnel are extroverts, whereas about 70% of all computer programmers are introverts. (For each answer, enter a number. Round your answers to three decimal places.)(a) At a meeting of 15 marketing personnel, what is the probability that 10 or more are extroverts?What is the probability that 5 or more are extroverts?What is the probability that all are extroverts?(b) In a group of 4 computer programmers, what is the probability that none are introverts?What is the probability that 2 or more are introverts?What is the probability that all are introverts?

## HELLLPPPPP

Sociologists say that 90% of married women

Question HELLLPPPPP

Sociologists say that 90% 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 ten 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 eight of them dislike their mother-in-law.(d) No more than seven of them dislike their mother-in-law.

## If you recomputed the correlation on a sample twice as large as your

Question If you recomputed the correlation on a sample twice as large as your original sample, what would happen to the tabled value of the correlation coefficient necessary for the obtained correlation to be considered “real?” It would increase. It would decrease. It would remain the same. There is no way to predict what would happen.

## please help i dont understand how to find these out nor what formulas to use

Question please help i dont understand how to find these out nor what formulas to use 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 six 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 six trials, what is the expected number of guilty verdicts in Japan? (Round your answer to two decimal places.) verdictsWhat is the expected number in the United Sates? (Round your answer to two decimal places.) verdictsWhat is the standard deviation in Japan? (Round your answer to two decimal places.) verdictsWhat is the standard deviation in the United States? (Round your answer to two decimal places.)

## Under which one of the following conditions may a causal relationship between variables X and

Question Under which one of the following conditions may a causal relationship between variables X and Y be inferred? Whenever an investigation other than a correlation coefficient has shown them to be causally related. Whenever the correlation coefficient is other than 0. Whenever the correlation coefficient is positive. Whenever the correlation coefficient is exactly 1.00 or −1.00.