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Appendix B: Computer Software






           A large number of computer software packages and spreadsheets are now
           available that can be used to generate probabilities such as those provided in
           Tables A.1–A.6as well as to perform other statistical calculations. For exam-
           ple, some statistical functions available in Microsoft 1  Excel TM  2000 are listed
           below, which can be used to carry out many probability calculations and to do
           many exercises in the text.

           AVEDEV: gives the average of the absolute deviations of data points from
             their mean
           AVERAGE: gives the average of its arguments
           AVERAGEA: gives the average of its arguments, including numbers, text, and
             logical values
           BETADIST: gives the beta probability distribution function
           BETAINV: gives the inverse of the beta probability distribution function
           BINOMDIST: gives the individual term binomial probability
           CHIDIST: gives the one-tailed probability of the Chi-squared distribution
           CHIINV: gives the inverse of the one-tailed probability of the Chi-squared
             distribution
           CHITEST: gives the test for independence
           CONFIDENCE: gives the confidence interval for a population mean
           CORREL: gives the correlation coefficient between two data sets
           COUNT: counts how many numbers are in the list of arguments
           COUNTA: counts how many values are in the list of arguments
           COVAR: gives covariance, the average of the products of paired deviations
           CRITBINOM: gives the smallest value for which the binomial distribution
             function is less than or equal to the criterion value
           DEVSQ: gives the sum of squares of deviations
           EXPONDIST: gives the exponential distribution
           FORECAST: gives a value along a linear trend
           FREQUENCY: gives a frequency distribution as a vertical array

           Fundamentals of Probability and Statistics for Engineers T.T. Soong Ó 2004 John Wiley & Sons, Ltd
           ISBNs: 0-470-86813-9 (HB) 0-470-86814-7 (PB)



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