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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 and more than type ogives for the data and use them to find the median weight.

Answers (1)

Answer. [201.8]
Solution.

Less than type		More than type
Weight	Number of packets	Number of packets	Number of students
Less than 200	0	More than or equal to 200	70
Less than 201	13	More than or equal to 201	70-13 = 57
Less than 202	40	More than or equal to 202	57-27 =30
Less than 203	58	More than or equal to 203	30-18 =12
Less than 204	68	More than or equal to 204	12-10 = 2
Less than 205	69	More than or equal to 205	2-1 = 1
Less than 206	70	More than or equal to 206	1-1 = 0

$Here\, \, n = 70,\frac{n}{2}= \frac{70}{2}= 35$
Hence median = 201.8

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infoexpert27

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