Measures of Central Tendency — Flashcards

Flashcard 1: Statistical power of a test is calculated as _____

Answer: 1-(Type II error)

Flashcard 2: Calculating Mode (using mean and median) = _____

Answer: 3 Median - 2 Mean

Flashcard 3: _____ is the statistical term used for an observation or value that is very distant from other observations in the distribution.

Answer: Outlier

Flashcard 4: What type of distribution is characterized by a long tail on the left side and Mean < Median < Mode?

Answer: Negatively skewed (Left-skewed)

Extra: In a negatively skewed distribution, the tail is on the left side (lower values). The relationship between measures of central tendency is: Mean < Median < Mode.

Flashcard 5: What type of distribution is characterized by a tail extending towards the right side, where the Mean > Median > Mode?

Answer: Positively skewed (Right-skewed) distribution

Extra: In a positively skewed distribution: - Tail extends towards the right (positive side). - Mean > Median > Mode. Conversely, in a negatively skewed (left-skewed) distribution: - Tail extends towards the left (negative side). - Mean < Median < Mode.

Flashcard 6: What type of distribution is this? _____

Answer: Normal

Flashcard 7: What type of distribution is this? _____

Answer: Negative/Left

Flashcard 8: What type of distribution is this? _____

Answer: Positive/Right

Flashcard 9: What type of bar graph is represented below? _____

Answer: Compound bar graph

Flashcard 10: The given image is of a _____.

Answer: frequency polygon