Statistics > QUESTIONS & ANSWERS > STA 2023 FINAL STUDY GUIDE, Top Exam Questions with accurate answers, rated A+ (All)
STA 2023 FINAL STUDY GUIDE, Top Exam Questions with accurate answers, rated A+
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STA 2023 FINAL STUDY GUIDE, Top Exam Questions with accurate answers, rated A+ Measures of location - ✔✔-mean median mode Measures of Dispersion - ✔✔-range standard deviation varianc ... e Measures of Position - ✔✔-percentiles quartiles z scores Qualitative Data - ✔✔-a characteristic of a variable Quantitative Variable - ✔✔-a variable that measures something. If a data set has all negative numbers, then its standard deviation is also negative - ✔✔-false In a symmetric distribution, we expect the values of the mean, median, and mode to differ greatly from one another. - ✔✔-False For any continuous probability distribution, P(x = 7) = 0. - ✔✔-True In skewed distributions, the mean is the best measure of the center of the distribution since it is least affected by extreme observations. - ✔✔-False Both 2 and 5 are mode of the data set 2, 5, 2, 5, 5, 2 - ✔✔-False Median of data set is also equal to second quartile - ✔✔-True The variance of 1, 2, 3 is same as the variance of 101, 102, 103 - ✔✔-True If events A and B are independent, which of the following is correct - ✔✔-p(A/B) = p(A) Events A and B are independent. Which statement below is not always true? - ✔✔-p(A and B)=0 50th percentile of a data set is also equal to Range/2. - [Show More]
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