MATH 2565 Lecture Notes - Quartile, Standard Deviation, Box Plot
10 Jan 2013
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Problem4. 13: the mean price of the electric smoothtop ranges is. In order to find the median and the quartiles, the list must be ordered. The median price of the electric smoothtop ranges is. Quartile 1 = and quartile 3 = : the range of the distribution of prices is max min = The iqr = q3 q1 = = . Problem4. 15: as long as the boss"s true salary of 000 is still above the median, the median will be correct. The mean will be too large, since the total of all the salaries will decrease by 000 000 000 = 800 000, once the mistake is corrected. The boss"s salary is probably the maximum, and a lower maximum would lead to a smaller range. The iqr will likely be unaffected, since the new maximum has no effect on the quartiles. The standard deviation will be too large, because the .
