About 90 percent of the more than 40 million former smokers in the U.S. report that
A. they crave cigarettes every day.
B. they quit smoking without a treatment program.
C. they still chew nicotine gum or wear a nicotine patch.
D. they have gained more than 10 pounds since quitting.
B
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A chi-square test for independence is being used to evaluate the relationship between two variables, one of which is classified into 3 categories and the second of which is classified into 4 categories. What is the df value for the chi-square statistic?
a. 6 c. 10 b. 7 d. 11
Why is the cerebral cortex folded in so many convolutions?
A) During prenatal development, the neural tube continues to fold over and over on itself, creating a hollow, convoluted structure. B) The cerebral cortex is very thick, so the folds allow for blood and other fluids to penetrate to the inside of the brain. C) The many folds allow a greater amount of surface area to fit within the skull. D) The electrical impulses of the neurons burn away sections of the brain as they start to make their connections, making the brain look like it has folds.
Gardner's __________ and __________ intelligences include a set of skills for accurately perceiving, reasoning about, and regulating emotion that has become known as emotional intelligence
A) linguistic; musical B) spatial; bodily-kinesthetic C) interpersonal; intrapersonal D) interpersonal; social
How many ova are present in a female adolescent's ovaries in puberty?
a. 20,000 b. 40,000 c. 60,000 d. 80,000