In a survey of 1000 adults, 145 indicated that they were not confident that they will have enough saved to last through retirement. Write the fraction, in lowest terms, of adults who are not confident they will have enough saved to last through retirement. The fraction of the adults that were not confident that they had enough saved is (Type an integer or a fraction.)

In a survey of 359 people, a pet food manufacturer found that 23 owned a dog but not a cat, 140 owned a cat but not a dog, and 87 owned neither a dog or a cat. (a) How many owned both a cat and a dog? (b) How many owned a dog? Additional Materials O eBook

World's Richest. Each year,Forbes magazine publishes alist of the world's richest people. In 2009, the six richest people,their citizenship, and their wealth (to the nearest billion dollars) are as shown in the following table. Consider these five people a population of interest. Wealth ($ billion) Name William Gates III (G) Warren Buffett (B) Carlos Slim Helu (H) Lawrence Ellison (E) Ingvar Kamprad (K) 40 38 35 23 22 a. Find the mean, µ, of the variable. b. For each of the possible sample sizes 2, 3, 4 construct a table and draw a dotplot for the sampling distribution of the sample mean c. Construct a graph and interpret your results.

93% of all dolphinesare cured of a particular bacterial infection. if 6 dolphines are treated and 3 are cured