Casio STAT 2 Manual do Utilizador descarregar pdf (Página 64)

Activity 12

IQ Testing

Topic Area: Normal Distribution Calculations

NCTM Standards:

• Understand and apply basic concepts of probability:

• understand the concepts of sample space and probability distribution

and construct sample spaces and distributions in simple cases (9-12)

• use simulations to construct empirical probability distributions (9-12)

• compute and interpret the expected value of random variables in simple

cases (9-12)

Objective

The students will be able to calculate percentiles, ranges, and outliers for a set of

normally distributed data.

Introduction

The normal curve or "bell curve" is helpful in analyzing many types of data. The

normal distribution makes several assumptions. The data is:

• continuous

• symmetric around its mean

• bell-shaped

• mean equals the mode and the median

In this activity the students will explore the cumulative density function and the

inverse cumulative density functions for normally distributed data.

The students should be familiar with the following vocabulary:

mean standard deviation

population sample

outliers percentile

normal distribution cumulative density function

inverse density function

Getting Started

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

your students are calculus level or above, you may want the students to calculate

these values themselves and then check with the calculator.

Teaching Notes

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 96 97

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