Questions from Statistics

Q: The following table shows the gas tax (in cents per gallon

The following table shows the gas tax (in cents per gallon) in each of the western U.S. states. (Source: 2017 World Almanac and Book of Facts) a. Find and interpret the median gas tax using a sentence...

Q: The data that follow are final exam grades for two sections of

The data that follow are final exam grades for two sections of statistics students at a community college. One class met twice a week relatively late in the day; the other class met four times a week...

Q: College students Diane Glover and Esmeralda Olguin asked 25 men and 25

College students Diane Glover and Esmeralda Olguin asked 25 men and 25 women how many speeding tickets they had received in the last three years. Men: 14 men said they had 0 tickets, 9 said they had 1...

Q: The following graph shows the heights for a large group of adults

The following graph shows the heights for a large group of adults. Describe the distribution, and explain what might cause this shape. (Source: www.amstat.org)

Q: The following histogram shows the sodium level for 132 people (from

The following histogram shows the sodium level for 132 people (from the National Health and Nutrition Examination Survey [NHANES]). The units are milliequivalents per liter. Without calculating, give...

Q: The table shows the location and number of floors in some of

The table shows the location and number of floors in some of the tallest buildings in the world. (Source: Infoplease.com) a. Find and interpret (report in context) the mean number of floors in this d...

Q: The table shows the names and heights of some of the tallest

The table shows the names and heights of some of the tallest roller coasters in the United States. (Source: Today.com) a. Find and interpret (report in context) the mean height of these roller coaste...

Q: The table shows the lengths (in miles) of major rivers

The table shows the lengths (in miles) of major rivers in North America. (Source: World Almanac and Book of Facts 2017) a. Find and interpret (report in context) the mean, rounding to the nearest ten...

Q: This list represents the number of children for the first six “

This list represents the number of children for the first six “first ladies” of the United States. (Source: 2009 World Almanac and Book of Facts) a. Find the mean...

Q: What do the numbers 1 and 0 mean for the variable Female

What do the numbers 1 and 0 mean for the variable Female, in Table 1A (which is coded categorical data)? Often, it does not make sense, or is not even possible, to add a categorical variable. Does it...