Find the median, mode and mean of 9, 5, 8, 9, 9, 7, 8, 9, 8?

  1. 9, 9, 9
  2. 9, 8, 9
  3. 8, 9, 8
  4. 8, 9, 9

Answer (Detailed Solution Below)

Option 3 : 8, 9, 8
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HTET PGT Official Computer Science Paper - 2019
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60 Questions 60 Marks 60 Mins

Detailed Solution

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Concept:

As per the given data,

9, 5, 8, 9, 9, 7, 8, 9, 8

Arranging the numbers in numerical order

5, 7, 8, 8, 8, 9, 9, 9, 9

Since there is an odd number of numbers, the middle number is the median of the given data

⇒ Median = 8

The value which appears mostly is considered as mode, as 9 is repeated 4 times.

⇒ Mode = 9

Mean = (9 + 5 + 8 + 9 + 9 + 7 + 8 + 9 + 8)/9 = 8

∴ Median, mode and mean = (8, 9, 8)

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