1.

In a mathematics test given to 15 student , the following makes ( out of 100) are recorded : 52,60,42,40,98,52,48,39,41,62,46,52,54,40,96 find the mean, median and mode of the given data

Answer» Mean = `( " sum of the given observations ")/(" total number of obsevations ")`
` 822/15= 274/5 = 54.8`
Now, we arrange the given data in an ascending order, as under
39,40,40,41,42,46,48,52,52,52,54,60,62,96,98
In this data, the most occurring item is 52. ltbr. Mode =52
Total number of terms = 15(odd)
median= makes obtained by `( (15+1)/2)` th student
= marks obtained by 8th student = 52
Mean = 54.8 median = 52 and mode = 52


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