A population has ? = 50 . What value of ? would make X = 55 an extreme value out in the tail of the distribution?

Joy refers to three groups of three students she will be tutoring the next day. Her

ability to remember all nine names may be aided by her obvious (a) working memory (b) sensory memory (c) long-term memory (d) chunking (e) good fortune that three of them have the same name

By age 17, nearly 80 percent of American girls are unhappy with their bodies

Indicate whether the statement is true or false.