Refer to 0.5 above. Draw the less then type ogive for this data and use it to find the median weight.

Explanation

For less than type table we follow the Q.5
Here, we observe that, the weight of all 70 packets is more than or equal to 200. Since, 13 packets lie in the interval 200-201. So, the weight of 70-12=57 packets is more than or equal to 201. Continuing int this manner we get remianing more than or equal to 202,203,204,205 and 205

To draw the less than type ogive, we plot the points (200,0),(201,13),(202,40),(203,40),(203,58),(204,68),(205,69),(206,70) on the paper and join by free hand.
To draw the more than type ogive plot the points (200,70),(201,57),(202,12)

Hence, required median weight=intersection points X-axis=201.8g