Lesson 10.2.6 Flashcards
1
Q
variance
A
it is the average of the squared deviations of a set
2
Q
standard deviation
A
it is the positive square root of the variance and is one of the most common and useful measures of variation
3
Q
normal distribution
A
a distribution of data that varies about the mean in such a way that a graph of the data is a normal curve
4
Q
normal curve
A
a graph that is bell-shaped and symmetric about the mean of the data set
