ThanksSolution1 For the mean consider Thus Mean Sumxf Sumf

Solution

1.

For the mean, consider:

Thus,  
  
Mean = Sum(xf) / Sum(f) =    55.53333333 [ANSWER]

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For the median, note that there are 150 entries, so the median is the average of the 75th and 76th lowest entries, which are both 50.

Hence,

Median = 50 [ANSWER]

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The mode is the obervation of largest frequency, which is

Mode = 50 [ANSWER]

as well.