# Question

For an exam given to a class, the students’ scores ranged from 35 to 98, with a mean of 74. Which of the following is the most realistic value for the standard deviation: -10, 0, 3, 12, 63? Clearly explain what’s unrealistic about each of the other values.

## Answer to relevant Questions

For the sample heights of Georgia college students in Example 15, the males had = 71 and s = 3 and the females had = 65 and s = 3. a. Use the empirical rule to describe the distribution of heights for males. b. The ...Example 12 gave data on the number of times married. For the observations for men, shown below, = 0.16 and s = 0.37. a. Find the actual percentages of observations within 1, 2, and 3 standard deviations of the mean. How do ...National Geographic Traveler magazine recently presented data on the annual number of vacation days averaged by residents of eight different countries. They reported 42 days for Italy, 37 for France, 35 for Germany, 34 for ...The Human Development Report 2006 published by the United Nations, showed infant mortality rates (number of infant deaths per 1000 live births) by country. For Africa, some of the values reported were: South Africa 54, Sudan ...For the 261 female heights shown in the box plot in Figure 2.16, the mean was 65.3 inches and the standard deviation was 3.0 inches. The shortest person in this sample had a height of 56 inches. a. Find the z -score for the ...Post your question

0