Mathematics, 02.06.2021 03:30 hrijaymadathil

If the results of a survey of senior high school students are normally distributed, and 21,000 students are surveyed, approximately how many students will there be who
have results that produce z-scores between -1 and 2?

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More questions: Mathematics Another questions

If the results of a survey of senior high school students are normally distributed, and 21,000 students are surveyed, approximately how many students will there be who have results that produce z-scores between -1 and 2?

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Another question on Mathematics

If the results of a survey of senior high school students are normally distributed, and 21,000 students are surveyed, approximately how many students will there be who
have results that produce z-scores between -1 and 2?