Casio STAT 2 Manuel d'utilisateur télécharger pdf (Page 18)

Activity 3

The Years of Your Life

Topic Area: Linear Bivariate Data

NCTM Standards:

• Formulate questions that can be addressed with data and collect, organize,

and display relevant data to answer them

• Understand the meaning of measurement data and categorical data, of

univariate and bivariate data, and of the term variable (9-12)

• Understand histograms, parallel box plots, and scatterplots and use

them to display data (9-12)

• Compute basic statistics and understand the distinction between a

statistic and a parameter (9-12)

• Select and use appropriate statistical methods to analyze data

• Find, use, and interpret measures of center and spread, including mean

and interquartile range (6-8)

• For bivariate measurement data, be able to display a scatterplot,

describe its shape, and determine regression coefficients, regression

equations, and correlation coefficients using technological tools (9-12)

Objective

The student will be able to plot bivariate data in a scatterplot, make conjectures

based on the plot, and create a regression equation using the graphing calculator.

Introduction

You can introduce this activity by asking your students some questions relating

to their guess as to life expectancy. Ask them if they know the current life

expectancy and what they think the trend has been over the last fifty years. Ask

them to conjecture as to why they think the trend is there.

The students should be familiar with the following vocabulary:

Univariate Interpolation

Regression y-Intercept

Bivariate Extrapolation

Trend Slope

Getting Started

For this activity you will need the Casio fx-9750G Plus graphing calculator and

a sample set of data that is included in the student pages. The students are using

the sample data given to answer the questions.

Teaching Notes

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Casio STAT 2 Manuel d'utilisateur Page 18