Twenty patients with severe epilepsy were observed for 8 weeks. The following ar

Question

Twenty patients with severe epilepsy were observed for 8 weeks. The following are the numbers of major seizures suffered by each patient during the observation period: 5 09 6 00 5 061 (a) Determine the median number of seizures. (b) Determine the mean number of seizures. onstruct a histogram of the data. Mark the positions of the mean and the median on the wec histogram (d) What feature of the frequency distribution suggests that neither the mean nor the median is a meaningful summary of the experience of these patients?

Explanation / Answer

Solutionb:

mean=sum/total

=5+0+9+6+0+0+5+0+6+1+5+0+0+0+0+7+0+0+4+7/20

=55/20

=2.75

mean=2.75

solutiona:

median=middlemost item when data arranged in ascendng order

A>O.is

0 0 0 0 0 0 0 0 0 0 1 4 5 5 5 6 6 7 7 9

median=0+1/2=0.5

median=0.5

Solutiond:

since it is the number of seizures mode is the correct meaningfull summary.

mode=0 it repeats10 times

Solutiond:

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