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May 30, 2020 at 6:02 pm
Question 3 appears to be marking incorrectly. It accepts answers between 7 and 7.1
The working it gives is : std dev is sqrt of 9 = 3 49% z value is 2.33 VAR = 2.33 x 3 The answer, therefore, is 6.99 NOT between 7 and 7.1
November 18, 2019 at 6:29 pm
i need answers for this mock
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