The Rift Valley is known for 1. diamonds and gold that are mined
2. the earliest signs of human habitation
3. tropical rainforests

The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?

What was different about warfare in the early 1800s and early 1900s?

Identify a true statement about media multiplexity. the choice of medium is primarily important in determining the strength of relationships. weak ties are uncomplicated and do not need many channels to sustain them. tie strength plays an insignificant role in determining the number of media employed by pairs. strong ties require less media than weak ties to orchestrate their varied and interdependent connection.