Estimate the range of scores that will include the middle

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A division-wide aptitude test in mathematics was conducted to 1000 pupils. course hero the mean of the test is 58 and standard deviations is 12.

a) What is the minimum score to belong to the upper 10% of the group?

b) What is the score that divides the distribution into two such that 75% of the cases is below it?

c) Estimate the range of scores that will include the middle 50% of the distribution. ____________ to _____________

Reference no: EM132852789

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