# Question: According to a recent report from the U S National Center

According to a recent report from the U.S. National Center for Health Statistics, for males

aged 25–34 years, 2% of their heights are 64 inches or less, 8% are 66 inches or less, 27% are 68 inches or less, 39% are 69 inches or less, 54% are 70 inches or less, 68% are 71 inches or less, 80% are 72 inches or less, 93% are 74 inches or less, and 98% are 76 inches or less. These are called cumulative percentages.

a. Which category has the median height? Explain why.

b. Nearly all the heights fall between 60 and 80 inches, with fewer than 1% falling outside that range. If the heights are approximately bell-shaped, give a rough approximation for the standard deviation of the heights. Explain your reasoning.

aged 25–34 years, 2% of their heights are 64 inches or less, 8% are 66 inches or less, 27% are 68 inches or less, 39% are 69 inches or less, 54% are 70 inches or less, 68% are 71 inches or less, 80% are 72 inches or less, 93% are 74 inches or less, and 98% are 76 inches or less. These are called cumulative percentages.

a. Which category has the median height? Explain why.

b. Nearly all the heights fall between 60 and 80 inches, with fewer than 1% falling outside that range. If the heights are approximately bell-shaped, give a rough approximation for the standard deviation of the heights. Explain your reasoning.

**View Solution:**## Answer to relevant Questions

Use the empirical rule to explain why the standard deviation of a bell-shaped distribution for a large data set is often roughly related to the range by evaluating Range ≈ 6s. (For small data sets, one may not get any ...Stub Hub is a popular Web site where fans can buy and sell tickets to concerts and sporting events. Below are data representing the amounts (in dollars) that buyers using StubHub spent on Super Bowl XLV tickets? a. Construct ...Using software with the Cereal data set on the text CD, construct (a) A dot plot. (b) A stemand- leaf plot. (c) A histogram. Explain how to interpret each plot. Identify each of the following variables as categorical or quantitative. a. Number of pets in family b. County of residence c. Choice of auto to buy (domestic or import) d. Distance (in kilometers) of commute to work Identify each of the following variables as either categorical or quantitative. a. Choice of diet (vegetarian, non-vegetarian) b. Time spent in previous month attending a place of religious worship c. Ownership of a personal ...Post your question