Measures of Dispersion — Flashcards

Flashcard 1: Measurements on the kelvin scale or pulse represent _____ scale data

Answer: ratio

Flashcard 2: _____ is least affected by outliers but mean is the most affected out of all the measures of location.

Answer: Mode

Flashcard 3: Calculating one variable using another variable is done using coefficient of _____

Answer: regression

Flashcard 4: Statistical power of a test is calculated as _____

Answer: 1-(Type II error)

Flashcard 5: In a moderately skewed distribution, Mean = _____ (expressed using Median and Mode)

Answer: (3 Median - Mode) / 2

Extra: Empirical relationship in a moderately skewed distribution: Mode = 3 Median - 2 Mean

Flashcard 6: In order to determine a confidence interval of a _____ at a given alpha value, the standard deviation, and sample size are also necessary

Answer: sample mean

Flashcard 7: In a distribution with outliers, preferred measure of central tendency is the _____.

Answer: median

Flashcard 8: What type of distribution is this? _____

Answer: Normal

Flashcard 9: What type of distribution is this? _____

Answer: Negative/Left

Flashcard 10: What type of distribution is this? _____

Answer: Positive/Right