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Mathematics, 10.10.2019 04:30 deadea46
95% of the scores on a standardized test with a mean of 450 fall between 250 and 650. what is a possible standard deviation of this test's scores? a. 50 b. 100 c. 200 d. 400
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95% of the scores on a standardized test with a mean of 450 fall between 250 and 650. what is a poss...
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