Consuming alcohol during pregnancy can cause the baby to be mentally retarded

Research on attachment indicates a likelihood that

A. people with secure attachment to parents have secure attachments to romantic partners. B. people with secure attachments to parents have insecure preoccupied attachments to romantic partners. C. people with insecure attachments to parents have secure att D. there is no correlation between attachment in childhood and attachment in adulthood.

The chi-square test of independence compares to _____

a. sample means; population means b. sample marginals; population marginals c. observed frequencies; expected frequencies d. sample frequencies; population frequencies