A sample of n = 25 scores has mean M = 20 and variance s2 = 9. What is the sample standard deviation?
A) ?3
B) ?4.5
C) ?9
D) ?81
A
You might also like to view...
A person who is competent and effective and who is loved and admired will almost always have
a. low self-efficacy. b. low self-awareness. c. high self-esteem. d. a high degree of arrogance.
Ivan Pavlov discovered __________
A) observational learning B) classical conditioning C) the ego’s positive contributions to development D) the clinical method
What is cocaine still used for medically?
A. It is prescribed for weight loss. B. It is used as a local anesthetic for nasal, laryngeal, and esophageal surgeries. C. It is used as a local anesthetic for dental surgeries. D. Cocaine has no medical uses currently.
Sigmund Freud developed his famous theorymostlyon the basis of
A) naturalistic observation B) case studies C) survey D) controlled experiments