Answer:
The Jazz Age was a cultural period and movement that took place in America during the 1920s from which both new styles of music and dance emerged. Largely credited to African Americans employing new musical techniques along with traditional African traditions, jazz soon expanded to America's white middle class.
The middle eastern country where you find the Suez Canal is Egypt!
Answer:
The dependent variable is their degree of sleepiness.
Explanation:
In a correlational study, an independent variable is expected to affect a dependent variable. In the example, the level of caffeine intake is predicted to change the participants' sleep patterns. In other words, the degree of sleepiness <u>depends</u> on the caffeine levels.
An easy way to remember the difference is to say: Independent causes change in dependent.