Distribution and Skewness Flashcards
1
Q
describe normal distribution
A
bell shaped curve
mean, median, mode lie on midpoint
2
Q
why doe she tails of the curves in normal distribution graphs never touch the axis?
A
extreme scores are theoretically possible
3
Q
describe positive distribution
A
Positive skew = skewed to the right
mean pulled to right - affected by extreme values
most score below mean
4
Q
describe negative distribution
A
negative skew = skewed to the left
mean pulled to left - affected by extreme values
most score above the mean
