  Centrale des maths - centraledesmaths.uregina.ca  Dilemmes & doutes    « D & D »    Sujet: estimating   nouvelle recherche

4 articles trouvés pour ce sujet.    Page1/1            Estimating products by rounding 2006-09-24 Ann pose la question :my son is in the fifth grade and they are doing estimate products rounding both factors, he knows how to round off a decimal, but he is having a problem doing a decimal and a whole number for example 5.96x3=? He knows the 5.96 round off to 6. but what does the 3 round off to?Penny Nom lui répond.     Estimating the time to complete a job 2000-12-03 Jack Hook pose la question : I'm a contractor and need to estimate how much time it will take me to do a specific job. A previous job I did was 6,480.16 Square Feet and I was able to paint it in 31.5 hours. In estimating my next job, how many hours will it take me to paint 11,000 Sqare Feet.Penny Nom lui répond.     Estimating the population mean 1999-11-13 John Barekman pose la question :Statitistics: Estimating the population mean when the standard deviation is known: I am not sure which n to use in the formula for the confidence interval equation: x +/- z*(standard deviation/sqrt(n)) If we have data of ten people, and if we have the data of ten sets of ten people each, what is the difference in the n that we use? What is the difference between the standard deviation and the standard error? Are we using the number of sampling means or just the number of samples?Harley Weston lui répond.     Area of an irregular shaped objects. 1999-04-07 Jesse Townsend pose la question :How do I find the surface area of an irregulary shaped object such as someone's knee from the thigh to shin? Thanks.Walter Whiteley lui répond.      Page1/1    Centrale des maths reçoit une aide financière de l’Université de Regina et de The Pacific Institute for the Mathematical Sciences.    Qui sommes-nous :: carte du site :: our english site