Approximately ___% of Caucasian American women and approximately ____% of African American women receive no prenatal care early in their pregnancies

The personalities of adopted children correlate highly with those of the adopting parents

a. True b. False Indicate whether the statement is true or false

As you increase the number of observations in a sample from 50 to 500, you are most likely to

a. leave the mean and standard deviation approximately unchanged. b. increase the variability as the sample size increases. c. decrease the variability as the sample size increases. d. make the shape of the distribution more skewed.