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In a population of 250 students, 60% are Whites, 20% are Latinos, 15% are Blacks, and 5% others. What is proportionate stratified random sample of

In a population of 250 students, 60% are Whites, 20% are Latinos, 15% are Blacks, and 5% others. What is proportionate stratified random sample of 120 students using above ratio? white Latino black other If the sample size of a population is 15 with a standard deviation of 96, find the standard error of the mean

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