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सी.आई.एस.सी.ई.आयसीएसई ICSE Class 7

Find the Median of 18, 19, 20, 23, 22, 20, 17, 19, 25 and 21 - Mathematics

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प्रश्न

Find the median of 18, 19, 20, 23, 22, 20, 17, 19, 25 and 21

बेरीज

उत्तर

18, 19, 20, 23, 22, 20, 17, 19, 25 and 21

Arranging in ascending order: 17, 18, 19, 19, 20, 20, 21, 22, 23, 25

Here, numbers of terms = 10 which is even.

∴ Median =`{"n"/2"th term"+("n"/2+1)"th term"}`

`= 1/2{10/2"th term"+(10/2+1)"th term"}`

= `1/2` {5th term + 6th term}

= `1/2` {20 + 20}

= `1/2xx40` = 20

Hence, median = 20

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पाठ 21: Data Handling - Exercise 21 (B)

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सेलिना Concise Mathematics [English] Class 7 ICSE
पाठ 21 Data Handling
Exercise 21 (B) | Q 21.3

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10 20 30 40 50 60 70 80 90 100
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(5) Inter quartile range


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