EDUC 750 QUIZ 2 CONCEPTUALIZATION MEASUREMENT AND SAMPLING CERTIFICATION EVALUATION EXAMS 2026 COMPLETE QUESTIONS AND ANSWERS GUARANTEED TO PASS

EDUC 750 QUIZ 2 CONCEPTUALIZATION
MEASUREMENT AND SAMPLING
CERTIFICATION EVALUATION EXAMS 2026
COMPLETE QUESTIONS AND ANSWERS
GUARANTEED TO PASS

◉ Statisics. Answer: a value calculated from a sample; can be used to
estimate a population parameter


◉ Population information gathering. Answer: census -> parameters


◉ sample information gathering. Answer: sampling survey ->
statistics


◉ mode. Answer: the observatuon that occurs the most in a
sequence of


◉ median. Answer: middle value of the data; if theres two middle
values add them together and divide.
Calculate: n+1/2 to find position of number

, ◉ mean. Answer: one number that is used to describe the entire
sample or population; add all data together and divide by how many
samples.


◉ symbol for sample mean. Answer: x̅


◉ left skewed data. Answer: mean < median < Mode


◉ right skewed data. Answer: mean < median < Mode


◉ symmetrical data. Answer: mean = median = mode


◉ range. Answer: largest value - lowest value


◉ deviation from the mean. Answer: x-xbar
sample size - mean
the sum of deviations from the mean is always zero


◉ Sample variance. Answer: S^2 = Σ (x-xbar)^2 / ( n - 1 )


◉ steps of sample variance. Answer: 1. find sample mean
2. find deviations (sample - mean)