Using the Computer for Random Selection:

Calc/Random Data/ Sample

1. Sample box input the desired size of the sample.

2. Select the sample

3. Store samples

Cal/Random Data/ Integer

1. Generate box input "1" as the size of the sample

2. Store in columns

3. Input Min and Max

Discrete Quantitative Frequency Tables

Stat/Tables/Tally Individual Variables

Select Counts, Percents, and Cumulative Percents.

Sorting the Data Using the Computer

Data/Sort

Constructing a Continuous Quantitative Frequency Table

Data/Code/Numeric to Text.

For more than 8

Edit/Command Line Editor:

Code ( x:x) "x up to x"&

Store cell

Stat/Tables/Tally Individual Variables and click Counts, Percents, Cumulative Percents

Qualitative Frequency Tables

Stat/Tables/Tally Individual Variables select Counts, Percents, Cumulative Percents.

Constructing a Histogram

Graph/Histogram

Select Cutpoint and then Midpoint/Cutpoint positions.

Constructing a Percent or Cumulative Percent Histogram

Histogram/Right click Edit Y Scale/Type/Percents or Accumulate values across bins.

Constructing a Bar or Pie Chart

Gaph/Bar Chart or Graph/Pie Chart.

Bar Chart click Counts of unique balues

Frequency bar chart select the column of data.

Percent frequency displays instead select Chart Options and click Default and Show Y as percent.

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Constructing a Stemplot

Graph/Stem-and-Leaf

In the increment input a value

Constructing a Scatter Diagram or Time Series Chart

Graph / Scatterplot / Simple or Connect Line/ Y variable (vertical)

Constructing a Contingency Table

Stat/Tables/Cross Tabulation and Chi-squares

Constructing a Bivariate Bar or Pie Chart

Graph/Bar Chart/A function of a variable/ Function / Graph variable/Categorical Variable Group.

Changing the scale of your figure

Edit Y Scale or X scale/Scale/Change units

Computing the Mean, Median, Mode

Stat/Basic Statistics/Display Descriptive Statistics

Computing the weighted mean

Calc/Calculator: Sum (Mark * Weight) / Sum (Weight)

Or Excel: =SUMPRODUCT()/SUM()

Computing the Geomean

Calc/Calculator/ exp(sum(log(GrowthFactors)))*(1/Count(GrowthFacors))

Or Excel: =geomean()

Computing the Quantitiles

Stat/Basic Statistcs/Display Statistics/ First qurtile, media, third quartile

Tools/Options / Individual Graphs/ Boxplots/ Percentiles

Calculating the Range and Standard Deviation

Stat/Basic Statsitcs/ Display Staistics/ Standard deviation, Variance, Range

(FOR A SAMPLE)

Calc/Calculator: (FOR A POPULATION)

STDEV(Area)/AQRT(N(AREA)/(N(AREA)-1))

68-95-99% rule: Normal Destribution

68 : u+1o OR u-1o

95:u+2o OR u-2o

99: u+3o OR u-3o

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