The larger the sample variance, the ______ that scores deviate from the mean on average.
A. farther
B. closer
C. either farther or closer
D. neither farther or closer
Ans: A
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The mean age in months for preschool children was reported as 25.5. The standard deviation for Group 1 was 3.4 and for Group 2, 4.9. From this, we may conclude that
A) ?Group 1 is more variable than Group 2. B) ?the mode for Group 1 is higher than that for Group 2. C) ?Group 2 is more variable than Group 1. D) ?the median age for Group 2 is higher than that for Group 1.
During the preparation component of the contest, it is recommended that you spend 20 minutes searching out materials and writing down facts, and 10 minutes rehearsing your presentation
a. True b. False Indicate whether the statement is true or false
A professional learning community (PLC) is
a. An old model of organizing schools b. Has as its core the centralized ideas of standards and accountability c. Is only used in large urban city schools d. Is never used with special needs children
A parade-of facts curriculum is preferred because it emphasizes reading and recitation and prepares students for standardized tests
a. True b. False