After administering a unit test to her psychology students, a college professor calculates the mean and range for this test in order to better understand the performance of her students on the material in this unit. This professor is using statistics

. Endorphins are _____

A) found where neurons meet skeletal muscles B) less powerful than enkaphalins C) pain-reducing neurotransmitters D) radically different in function from neurotransmitters

More than 50 percent of adolescents have engaged in oral sex by the time they graduate high school

Indicate whether the statement is true or false.