Download Section 11.10 Notes - Verona Public Schools

Section 11.10- Normal Distributions
Essential Question: What kind of patterns do most statistics follow?
About Normal Distributions

Many common statistics (such as human height, weight, or blood pressure)
gathered from samples in the natural world tend to have a normal distribution
about their mean

Sometimes data are not normally distributed.

A data set could have a distribution that is ___________.

When a data is skewed, the data do not vary predictably about the
_____________.
______________________
__________________________
___________________
Example 1: Analyzing Normally Distributed Data
a. Approximately what percent of female brown bears weigh less than 120 kg?
b. A standard deviation in the weights of female brown bears is about 10 kg.
Approximately what percent of female brown bears have weights that are within 1.5
standard deviations of the mean?
Example 2: Sketching a normal curve
Example 3: Analyzing a Normal Distribution
Group Work:
Complete Problems #2, 3, 5, 6
HW: p. 743-744 #7-10, 20, 21, 23-28, 31