"10 facts about Crime and Incarceration in the United States"

According to the authors of "10 facts about Crime and Incarceration in the United States" which of the following is true:

1. There is nearly a 20 percent chance that an African American man without a high school diploma will be imprisoned by his mid-thirties
2. The majority of criminal offenders are under the age of 30
3. Juvenile incarceration can have lasting impacts on a young person's future
4. Federal and state policies have driven up the incarceration rates in the past 30 years

https://www.brookings.edu/wp-content/uploads/2016/06/v8_thp_10crimefacts.pdf