1. In the data set, the sum of all the data points, divided by the number of data points; the average. 2. To find the mean, you add up all the data, and then divide by the number of data.
Answer:
Megalithic
Explanation:
relating to or denoting prehistoric monuments made of or containing large stones.
The Homestead Act helped to expand and develop the united states because it granted land for agriculture. it allowed people to acquire land west of the Mississippi river and to settle it. President Lincoln signed the Homestead Act on May 20 ,1862
Lower speed limits. Cheaper car imports from Asia that were more fuel efficient. Catalytic converters were put on cars.