If ?(X ? M)2 = 235, and n = 29, what is s2?
a. 8.10
b. 8.39
c. 2.90
d. 43.64
Ans: b
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Identify the percentage of African American teachers in U.S. public schools.
a. 7 b. 10 c. 18 d. 23
Observation is more objective in the
a. physical sciences. c. metaphysical sciences. b. social sciences. d. education.
?In centers serving infants, licensing usually requires ___.
a. ?a structured plan for potty training
b. ?training on diaper changing for every staff member in the center
c. ?detailed plans for diapering, including the surface on which baby is placed, plan for disposing soiled diapers, and hand washing by staff after each diaper change
d. ?all of the above
Define algebra.
a. Understanding of the meaning of words b. Uses mathematical statements to describe relationships between things that vary over time c. Knowledge of word problem types and recognition of irrelevant information d. Three numbers that are related