If the Mean of a Distribution Is 100 and the Standard

question 28

Short Answer

If the mean of a distribution is 100 and the standard deviation is 15,what percentage of scores occur between +1 and -1 standard deviations? What percentage of scores occur between +2 and -2 standard deviations?

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Definitions:

Margin Of Error

An indicator of the precision of an estimate or poll, expressing the range within which the true value lies with a specified level of probability.

Confidence

The degree of certainty or trust in a specific context, often used to refer to the level of certainty in statistical conclusions.

Confidence Interval

A band of numerical estimates, from sample data, seen as likely to include the value of an invisible population characteristic.

Sampling Distribution

The probability distribution of a given statistic based on many random samples from a specific population.