MATH 110 Lecture Notes - Lecture 30: The Bell Curve, Standard Deviation, Normal Distribution
Document Summary
Math 110 lecture 30 chebyshev"s theorem. Is theorem that at least 75% of the data of any distribution lies within 2 standard deviation of the mean. Normal distribution x - 2s and x + 2s. Illustrated by a bell-shaped curve where the mean and median are the same and situated exactly in the middle of the curve. X gives the location of the peak and the standard deviation determines how skinny the curve is. The larger the mean, the more the bell curve is located to the right. The area under the curve represents 100% of some population. 50% lies on 1 side of the x and 50% on the other side. The average height of a us male is 69 , or 5"9 . Half of the bell curve represents 50% of the males that are equal to a height of or taller than 69 .
