Below is the probability distribution for random variable x. What is the standard deviation of this probability distribution?
x 1 2 3
p(x) 0.24 0.52 0.24
A. 0.48
B. 0.69
C. 0.24
D. 2.00
Ans: B
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All of the following are possible signs of hearing impairments except:
A. delayed motor development. B. delayed and immature speech and grammar. C. speech that is too loud or too soft for the situation. D. short attention span, distractible.
Describe what is meant by the statement "Teaching as an art involves beliefs, emotions, values, and flexibility." How does teaching involve each of these qualities?
What will be an ideal response?
Which of the following statements most accurately represents the relationship between Payne’s and Gorski’s work?
a) Their beliefs are almost diametrically opposed. b) They both support the use of a strengths-based instructional model. c) Their arguments attempt to explain very different aspects of student achievement. d) Payne uses Gorski’s work as a foundation for her own.
Spontaneous lessons can be effective
Indicate whether the statement is true or false.