The weights of tea in 70 packets are shown in the following table :  

Weight (in gram) Number of packets
200-201
201-202
202-203
203-204
204-205
205-206
13
27
18
10
1
1

Draw the less than type ogive for this data and use it to find the median weight.

Answers (1)

Answer. [201.8]
Solution.                 

Weight cf
Less than 201 13
Less than 202 27+13=40
Less than 203 40+18=58
Less than 204 58+10=68
Less than 205 68+1 =69
Less than 206 69+1 = 70


n = 70,\frac{n}{2}= \frac{70}{2}= 35
Hence the median is 201.8

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