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Learning resources brought to you by Tucson Unified's Curriculum and Instruction

We've provided a rich selection of free, fun online learning sources in English language arts (ELA), math, science, and visual arts to supplement your learning. These are organized by grade level. Click the grade level for your child to get started!

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How to Use This Page

This page contains a "menu" of lessons and activities for this week. You will find the objectives: the specific skills that you work on. Then you will find a selection of lessons and activities which help you practice and master those skills. If you run into technical issues or other difficulties with any of these, simply move on and choose another.


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Probability and Statistics- Week Two

Printable Version - Week Two Learning Board (in PDF)

High School Probability & Statistics

Week 2    April 6th – 9th


Math Objectives: Students will be able to:  

  • Create a confidence interval for proportions and learn the details of intervals.  

Instructional Videos 


TUSD Teacher’s explanation 


Khan Academy 





(Alg2) EE.10: Find confidence intervals for population proportions 


Your goal is a minimum Smart Score of 80 

Self-Check / Formative Assessment 


We want to know the number of people in Tucson who bicycle to work. We take a sample of size 98 of people with jobs. Within that sample we find that we have 13 people bicycle to work. 



Here's a lesson that uses a game from The Price is Right to illustrate confidence intervals.  


Online Stats Books with embedded practice problems. 


Statistics Handbook: with embedded videos and examples worked out. 

Independent Practice 


Problem Set #1 


Lesson on Confidence Intervals from PennState has embedded practice problems with answers. 

(1) State the population  
(2) State the statistic  
(3) Find the standard deviation   
(4) Give the margin of error.  
(5) Give the confidence interval.  

Standard Deviation (standard error):

pˆ  is the sample proportion  

z = critical value  

Parameter: numbers that describe a population 

Confidence Interval: defines a range of values that you can be ___% certain contains the population parameter. 

Population: a set of similar items or events which is of interest for some question or experiment 

Sample: a set of individuals or objects collected or selected from a population 

Margin of Error: critical value * standard error 

Statistic: number calculated from a sample 

Confidence Level: refers to the percentage of all possible samples that can be expected to include the true population parameter 

Links and Apps

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