Why is “n-1” used when calculating the sample variance?
What will be an ideal response?
Ans: Because there is more variability in a population than in a sample, when working with sample data, we need to obtain an unbiased estimate of the population variance in the sample data.
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Young children have difficulty understanding the implications of a disaster due to their ____________________ thinking.
Fill in the blank(s) with the appropriate word(s).
(p. 161) According to Lev Vygotsky, social interaction is a prerequisite for children to develop problem-solving skills.
Answer the following statement true (T) or false (F)
Digital literacy can facilitate the career exploration process by helping you to evaluate online information
Indicate whether the statement is true or false
Feedback from a peer group during middle childhood helps the child's development of:
A) Self regulation B) Conservation C) Work ethic D) Self-concept