Which of the following does NOT define the mean?
a. SfX/N
b. S (X - m) = 0
c. SX/N
d. None of the above define the mean.
e. a), b) and c) all define the mean.
Ans: e
You might also like to view...
Directors who are successful in establishing a positive public image pay special attention to ___
a. ?staff’s interaction with parents and children b. answering the phone c. ?the appearance of the physical environment, both inside and outside? d. ?staff’s interaction with parents and children, answering the phone, and the appearance of the physical environment, both inside and outside
Traditionally, children learned via rote memory under the assistance of an adult
Indicate whether this statement is true or false.
Compared to European American children, students who are Black or Latino are:
A. Less likely to be diagnosed with an autism spectrum disorder B. Twice as likely to be diagnosed with an autism spectrum disorder C. Four times as likely to be diagnosed with an autism spectrum disorder D. As likely to be diagnosed with an autism spectrum disorder
Which of the following techniques yields a simple random sample?
a. Choosing volunteers from an introductory psychology class to participate b. Listing the individuals by ethnic group and choosing a proportion from within each ethnic group at random c. Numbering all the elements of a sampling frame and then using a random number table to pick cases from the table d. Randomly selecting schools, and then sampling everyone within the school