हिंदी

In the following data one of the value of y is missing. Arithmetic means of x and y series are 6 and 8 respectively. (2=1.4142) x 6 2 10 4 8 y 9 11 ? 8 7 Estimate missing observation. - Mathematics and Statistics

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प्रश्न

In the following data one of the value of y is missing. Arithmetic means of x and y series are 6 and 8 respectively. `(sqrt(2) = 1.4142)`

x 6 2 10 4 8
y 9 11 ? 8 7

Estimate missing observation.

योग
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उत्तर

Let the missing observation be 'a'

x 6 2 10 4 8
y 9 11 a 8 7

`bar"x"` = 6, `bar"y"` = 8, n = 5

`bar"y" = (sum_"y")/"n"`

∴ 8 = `(35 + "a")/5`

∴ a + 35 = 40

∴ a = 40 − 35

∴ a = 5

∴ Missing frequency = 5

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Correlation
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Correlation - Exercise 5.1 [पृष्ठ ६३]

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बालभारती Mathematics and Statistics 2 (Commerce) [English] 11 Standard Maharashtra State Board
अध्याय 5 Correlation
Exercise 5.1 | Q 6. (i) | पृष्ठ ६३

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