Use data from a random sample to draw inferences about a population with an unknown characteristic of interest. Generate multiple samples (or simulated samples) of the same size to gauge the variation in estimates or predictions. For example, estimate the mean word length in a book by randomly sampling words from the book; predict the winner of a school election based on randomly sampled survey data. Gauge how far off the estimate or prediction might be.
|
Learning:
Videos:
Practice Problems:
IXL Practice Problems (must practice at home):
Videos:
- YouTube: Predicting and Inferring Data Samples
- Khan Academy: Reasonable samples
- YouTube: Using Random Samples
Practice Problems:
- Khan Academy: Valid Claims
- Khan Academy: Making inferences from random samples
- Khan Academy: Samples and surveys
IXL Practice Problems (must practice at home):
- Estimate population size using proportions
- Calculate mean, median, mode, and range
- Interpret charts and graphs to find mean, median, mode, and range
- Find the missing number in mean, median, mode, and range
- Changes in mean, median, mode, and range