How to find modal frequency and median mark
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The modal class is the group with the highest frequency. In this case, it is the two groups corresponding to 7. To work out the mean you will need to multiply the midpoint of each group by the frequency, add this column up, and divide the answer by the total frequency.

Step-by-step explanation:

To find the mode: Look for the largest frequency & the corresponding value is the modal value or modal class.

To find the median: Calculate a running total of the frequencies - the first interval that is above half the total contains the median.

Hope it helps:D