IQ scores form a normal distribution with µ = 100 and ? = 15 . Individuals with IQs between 90 and110 are classified as average. What proportion of the population is average?

Julie is a 47-year-old college professor who was shocked to find out she was pregnant. Although she was elated at the idea of having another child, she was worried about having a child with ______________ because the chances increase dramatically after ag

a. anencephaly b. spina bifida c. cystic fibrosis d. Down syndrome

By 2 months of age, most babies can sit upright with support

Indicate whether the statement is true or false