1.) Come up with 10 examples of how statistics are used in the real life. Be specific and unique. 2.) Video

1. ) Copy notes below 2. ) Read and discuss pages 1-7 3 1.) Copy notes below 2.) Read and discuss pages 1-7 3.) Answer questions 1.1-1.4 Section1.1 Individuals-objects described by a set of data; may be people, animals or things Variable-any characteristic of an individual; different values for different individuals

1. ) Copy notes below 2. ) Read and discuss pages 8-12 3. ) Answer 1 Section 1.1 Observational study-observes individuals and measures variables of interest but does NOT attempt to influence the responses; the purpose is to describe some group or situation. Sample survey- survey some group of individuals by studying only some of its members, selected because they represent the larger group. Population- entire group of individuals about which we want information. Sample- part of the population from which we actually collect information, which is then used to draw conclusions about the whole.

1. ) Copy notes below 2. ) Harry Potter Activity 3 1.) Copy notes below 2.) Harry Potter Activity 3.) Read pages 13-17 4.) Answer 1.12-1.16 Section 1.1 Census-sample survey that attempts to include the entire population in the sample Experiment- deliberately imposes some treatment on individuals in order to observe their responses. The purpose of an experiment is to study whether the treatment causes a change in the response.

1. ) Do Now (see below) 2. ) Section 1. 1 Review (pg. 20-21/1. 18-1 1.) Do Now (see below) 2.) Section 1.1 Review (pg. 20-21/1.18-1.23) 3.) Go over review 4.) 1.1 Quiz tomorrow Suppose you want to determine how much sleep and homework completion affect grades. You decide to ask 500 students from Warwick Valley High School. What are the individuals, variables measured, population and sample of your study? Is this an observational study or an experiment?

Measurement- when we assign a number to represent a property 1.) 1.1 Quiz 2.) Copy notes below 3.) Read & Discuss pages 22-26 4.) Answer 1.24-1.27 Section 1.2 Measurement- when we assign a number to represent a property Numerical Variable- a measurement used to describe an individual

1. ) Copy terms below 2. ) Read & discuss pages 28-32 3. ) Answer 1 Section 1.2 Valid- when a variable is a relevant or appropriate measure of a property Predictive validity- if a measurement can be used to predict success on tasks that are related to the property measured A rate at which something occurs is a more valid measure than a simple count of occurences. Copy the following web address into your notebook: funeducation.com. We will be in the library tomorrow taking an I.Q. test. You can go straight to the library and I will take attendance there.

1. ) Copy terms below 2. ) Read & discuss pages 34-39 3. ) Answer 1 1.) Copy terms below 2.) Read & discuss pages 34-39 3.) Answer 1.35-1.41 4.) Activity 1.B: How long is a minute? Section 1.2 Errors in Measurement Bias- if a measurement systematically overstates or understates the true value of the property it measures. Random Error- if repeated measurements of the same individual give different results. Reliable – when random error of a measurement is small The average of several measurements is ALWAYS more reliable than a single measurement!

1.) Section 1.2 Review (pages 42-44/1.42-1.48) 2.) 1.2 QUIZ tomorrow

1. ) 1. 2 QUIZ 2. ) Read and discuss pages 45-49 3. ) Answer 1. 50-1 1.) 1.2 QUIZ 2.) Read and discuss pages 45-49 3.) Answer 1.50-1.54 4.) Snapple “Real Facts”

1.) Find the formula for percent change 2.) Go over questions 1.50-1.54 3.) Read and discuss pages 50-54 4.) Answer 1.55-1.60

Questions to ask about a variable 1.) Exactly how is the variable defined 2.) Is the variable a valid way to describe the property it claims to measure? 3.) How accurate are the measurements?

1.) Chance News Activity 2.) Section 1.3 Review (pages 57-58/1.61-1.69) 3.) Study for 1.3 QUIZ tomorrow

1.) 1.3 QUIZ 2.) Chapter 1 Review (pages 59-62/1.70-1.79)

1.) Go over review 2.) Study for test!!!