For this set of data, the mean is equal to ______. 9, 8, 10, 5, 5, 2, 3, 9, 6, 3
a. 5.67
b. 51
c. 353
d. 2601
a. 5.67
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Which of the following is an advantage of networks in schools?
A) RAM capability B) Open access for all students C) Internet connectivity D) Restricted communications
Which of the following statements about goal-attainment grading is most defensible?
A. "Because students' effort plays such a pivotal role in a student's ultimate learning, all goal-attainment grading must include a provision for incorporating students' levels of effort."
B. "Given its focus on students' mastery of curricular-targets, goal-attainment grading essentially precludes the possibility of teachers' measuring students' affective dispositions."
C. "Because of the centrality of curricular aims in any goal-attainment conception of grading, the curricular targets being sought should be carefully described to students' parents and to students themselves at grading time."
D. "If a teacher can collect defensible assessment evidence of a student's mastery of the teacher's designated curricular aims, then this evidence should be the only basis for goal-attainment grading."
An investigator began with a precise and logical hypothesis. He ran a well-planned and well-conducted experiment to test the deduced consequences of this hypothesis. No evidence was found to support the hypothesis. The investigator should report that
a. his study was a failure. b. the hypothesis was proved false. c. the hypothesis is probably true but experimental conditions did not permit the effect to be observed. d. None of these is true.
Which of the following is the best definition of Marginal Utility?
a. A principle where consumers try to maximize their satisfaction through their income by purchasing goods and services. b. An economic purchase that leaves the consumer dissatisfied. c. A utility company that sells energy on margin calls. d. A utility pole that almost ready to be replaced. e. A principle that the more we have of something the more pleasure it brings.