Because of the need to measure the iq of people of varying ages, newer iq tests base their evaluation of iq on

Newer IQ test base their evaluation of IQ on deviation IQ scores  from the mean of the normal distribution. Deviation Intelligence quotient is used to measure the intelligence of a person. Deviation IQ scores are more accurate than the original way of measuring the person’s intelligence. 

forty niners migrated west due to gold discovery in california and it the west was a new place for hope this : )

explanation:

answer; /// i believe the correct answer is general act charters;