Babies who spend more time alert are likely to have __________

Down syndrome is sometimes referred to as trisomy-21 because individuals who have Down syndrome ______

A. have three distinct facial features by the 21st week of pregnancy B. show three distinct temperament patterns by the 21st week of infancy C. have a third chromosome on the 21st pair D. have 21 genes on the 3rd pair of chromosomes

Scores on the SAT form a normal distribution with a mean of µ = 500 with ? = 100 . If the state college only accepts students who score in the top 60% on the SAT, what is the minimum score needed to be accepted?

a. X = 475 c. X = 440 b. X = 525 d. X = 560