1. A researcher gathered evidence about the number of times different age students consult the internet to check facts for research reports. Participants between 10 and 15 years old consulted the internet an average of 10.1 times during the research report, and participants between 15 and 25 years old averaged 7.3 times. Explain what "statistical significance" would mean in the context of this study.

Southern tick-associated rash illness (stari) is a disease often carried by deer ticks in the southern united states. which sentence best explains how climate change could increase the number of stari cases? a. infectious diseases may become more widespread as ticks increase their range. b. ticks may weaken the animals they feed on, causing more deaths in the population. c. people who work in agriculture may have to relocate to find new employment. d. rising seas and flooding may result in the displacement of millions of people.

The roman empire fell around the 5th century, and as islam spread in the 7th century, trade between europe and china slowed. chinese traders were blocked from westward expansion into europe when the chinese army was defeated by muslim fighters in the area known as syr darya. the trade routes, known as the silk road, fell into disuse, and trade between the far east and europe nearly stopped. it wasn't until the 13th century when the mongols invaded and controlled central asia and large parts of the middle east that extensive trade along these routes was opened again. based upon the paragraph above and your knowledge of the mongols, which of the following statements is correct? a. the mongols unified regions along the silk road, allowing for safe transport of goods. b. muslims controlled busy trade routes into china from the 5th to the 7th centuries. c. without access to european markets, the chinese were unable to obtain raw materials. d. the mongols replaced the roman empire as the dominant force in western europe.

In 2004 how many nightly car accidents were there