Chapter 3 Flashcards
1
Q
Mean
A
Average
2
Q
Median
A
Half of N have, half have not
3
Q
Mode
A
More have done X at a specific time than any other time
4
Q
Range
A
Largest number minus the smallest number in the distribution
5
Q
Variance
A
Degree of variability, sum of squares over (N - 1)
6
Q
Definitional formula
A
Define and reflect logic behind the concepts they express
7
Q
Computational formula
A
Like a definitional formula, but is more convenient for large amounts of data
8
Q
Statistic
A
Quantitative characteristic of a sample
9
Q
Parameter
A
Quantitative characteristic of a population
