Which of the following is the best illustration of how tails tend to occur in a normal distribution? A. The probability of the average height of ten random women being within one inch of 64” is higher than the probability of one random woman having a height within one inch of 64”. B. If you flip a coin 20 times, it is very unlikely that you will get no heads, or one or two heads, but it is possible and it does happen once in a while. C. 68% percent of people have an IQ between 85 and 115. D. Two different normal distributions can be compared by using z scores.

Question 46 (page 181) DI, Richmond, a psychologist, is studying the daytime television viewing habits of college students. She believes 45% of college students watch soap operas during the afternoon. To further investigate, she selects a sample of 10. a) Develop a probability distribution for the number of students in the sample who watch soap operas. b) Find the mean and the standard deviation of this distribution. c) What is the probability of finding exactly four students who watch soap operas? d) What is the probability less than half of the students selected watch soap operas? Question 56 (page 182) According to sales information in the first quarter of 2016, 2.7% of new vehicles sold in the United States were hybrids. This is down from 3.3% for the same period a year earlier. An analyst's review of the data indicates that the reasons for the sales decline include the low price of gasoline and the higher price of a hybrid compared to similar vehicles. Let's assume these…

Which one of the following probabilities is cumulative probability? 1.The probability that there are exactly 4 people with o positive blood in a sample of 10 people. 2. The probability of exactly 3 heads in 6 flips of a coin 3. The probability that the accumulated annual rainfall in a certain city next year, rounded to the nearest inch, will be 18 inches. 4. The probability that a randomly selected woman's height is 67 inches or less

A recent study has shown that approximately 31.6% of Canadians are considered 'supertasters,' or people who experience the sense of taste with greater intensity than average. Consider a sample of 23 Canadians, each of whom are asked to indicate if they are a supertaster or not. Please use this information to answer the following questions.a. Suppose you know that at least 7 of the Canadians sampled are supertasters. What is the probability that exactly 15 of the Canadians sampled are supertasters?Answer:______________Round to at least FOUR digits after the decimal if necessary. b. What is the probability that the 10th Canadian sampled is the sixth person to indicate that they are a supertaster?Answer:______________Do NOT round your answer; give all the decimals.