Chapter 23 Data Handling II (Central Values) Exercise – 23.3
Question: 1
Data – 83, 37, 70, 29, 45, 63, 41, 70, 34, 54
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Question: 2
Data – 133, 73, 89, 108, 94,104, 94, 85, 100, 120
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Question: 3
Data – 31, 38, 27, 28, 36, 25, 35, 40
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Question: 4
Data – 15, 6, 16, 8, 22, 21, 9, 18, 25
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Question: 5
Data – 41, 43,127, 99, 71, 92, 71, 58, 57
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Question: 6
Data – 25, 34, 31, 23, 22, 26, 35, 29, 20, 32
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Question: 7
Data – 12, 17, 3, 14, 5, 8, 7, 15
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Question: 8
Data – 92, 35, 67, 85, 72, 81, 56, 51, 42, 69
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Question: 9
Numbers 50, 42, 35, 2x +10, 2x – 8, 12, 11, 8, 6 are written in descending order and their median is 25, find x.
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Question: 10
Find the median of the following observations: 46, 64, 87, 41, 58, 77, 35, 90, 55, 92, 33. If 92 is replaced by 99 and 41 by 43 in the above data, find the new median?
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Question: 11
Find the median of the following data: 41, 43, 127, 99, 61, 92, 71, 58, 57, If 58 is replaced by 85, what will be the new median?
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Question: 12
The weights (in kg) of 15 students are: 31, 35, 27, 29, 32, 43, 37, 41, 34, 28, 36, 44, 45, 42, 30. Find the median. If the weight 44 kg is replaced by 46 kg and 27 kg by 25 kg, find the new median.
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Question: 13
The following observations have been arranged in ascending order. If the median of the data is 63, find the value of x: 29, 32, 48, 50, x, x + 2, 72, 78, 84, 95
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