Friday
November 21, 2014

Homework Help: Statistic

Posted by Artmisha on Friday, May 30, 2014 at 2:16pm.

For 3 and 4 find the range, variance, and standard deviation. Round to the nearest tenth.

3. Twelve students were given an arithmetic test and the times (in minutes) to complete it were

10, 9, 12, 11, 8, 15, 9, 7, 8, 6, 12, 10

4. The normal daily temperatures (in degrees Fahrenheit) in January for 10 selected cities are as follows.

50, 37, 29, 54, 30, 61, 47, 38, 34, 61


5. If a history test has a mean of 100 and a standard deviation of 10, find the corresponding z score for a test score of 115.

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