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What are the two main goals of time series analysis? Statistics may be regarded as the study of the reduction of the data? (b)For a set of numbers 1,4,7. Find population mean and Variance. Draw up frequency distributions of means of all possible samples of size 3 when sampling is carried out with replacement. Find mean and variance of distribution? What means the criterion being used reflects the difference between high and low performers? How can you sort the results from an sql statement? What is the probability that a letter chosen at random from the 26 letters in the alphabet would be in the word mathematics? What percent of Americans have become obesity in the last 20 years? If you have a standard deck of 52 playing cards with 4 suits If two cards are drawn without replacement what is the chance of selecting two queens? How do you subtract standard deviations? What chart shows the probability of surviving to any given age? What Is the comparison of reliability and validity? What is the failure rate of a vasectomy after 8 years? What best describes what the mishap probability component is? How do you find the degrees of freedom when using the t distribution to estimate or test the mean of a sample from a single population? What standards of guidelines would you recommend for deciding whether statistical differences between men and women or non minorities and minorities reflect discrimination occurring in an organization? What are interfering variables? How many ways can a committeee of 6 be chosen from 5 teachers and 4 students if the committee must includes three teachers and three students? On a bar chart the bar that shares a common color are a data? When you have a set of numbers including 700 300 400 and 600 what is the range? Why your period lasted two days instead of five?