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 six married women are having coffee together one morning. What is the probability that none of them dislike their mother-in-law?

The Wall Street Journal reported that approximately 25% of the people who are told to a product is improved will believe that it is in fact improved, The remaining 75% believe that this is just hype (the same old thing with no real improvement). Suppose a marketing study consists of a random sample of eight people who are given a sales talk about a new, improved product. Make a histogram showing the probabilities that r = 0 to 8 people believe the product is in fact improved.

The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling. About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of seven adult friends, what is the probability that at least one person has done a one-time fling?

The heights of 18-year-old men are approximately normally distributed, with mean 68 inches and standard deviation 3 inches. What is the probability that an 18 -year-old man selected at random is between 67 and 69 inches tall?

Over the past several months, an adult patient has been treated for tetany (severe muscle spasms). This condition is associated with an average total calcium level below 6 mg/dl. Recently, the patient 's total calcium tests gave the following readings (in mg/di).

The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling. About 10% of all adults deliberately do a one-time fling and feel no guilt about it! In a group of seven adult friends, what is the probability that no more than two people have done a one-time fling?

Richard has just been given a 10-question multiple-choice quiz in his history class. Each question has five answers, of which only one is correct. since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on all 10 questions, find the indicated probabilities. What is the probability that he will answer all questions correctly?

Aldrich Ames is a convicted traitor who leaked American secrets to a foreign power. Yet Ames took routine lie detector tests and each time passed them. How can this be done? Recognizing control questions, employing unusual breathing patterns, biting one's tongue at the right time, pressing one's toes hard to the floor, and counting backwards by 7 are countermeasures that are difficult to detect but can change the results of a polygraph examination. In fact, it is reported in Professor Ford's book that after only 20 minutes of instruction by "Buzz" Fay (a prison inmate), 85% of those trained were able to pass the polygraph examination even when guilty of a crime. Suppose that a random sample of nine students (in a psychology laboratory) are told a "secret" and then given instructions on how to pass the polygraph examination without revealing their knowledge of the secret. What is the probability that (c) no more than four of the students are able to pass the polygraph examination?

has never been married or is married, given that this person is a woman.

A research team at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear them so tightly that they actually reduce blood flow to the brain, diminishing cerebral functions. At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that no tie is too tight?

The one-time fling! Have you ever purchased an article of clothing (dress, sports jacket, etc.), worn the item once to a party, and then returned the purchase? This is called a one-time fling. About 10% of all adults deliberately do a one-time fling and feel no guilt about it! In a group of seven adult friends, what is the probability that (a) no one has done a one-time fling?

Richard has just been given a 10-question multiple-choice quiz in his history class. Each question has five answers, of which only one is correct. since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on all 10 questions, find the indicated probabilities. What is the probability that Richard will answer at least half the questions correctly?

Have you ever tried to get out of jury duty? About 25% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 12 people are called for jury duty, how many people n must the jury commissioner contact to be 95.9% sure of finding at least 12 people who are available to serve?

A fair quarter is flipped three times. For each of the following probabilities, use the formula for the binomial distribution and a calculator to compute the requested probability. Next, look up the probability and compare the table result with the computed result. Find the probability of getting exactly two heads.