if the mean of 17,19,23,16 a,18 and14is17.find the value of ,​

2 thoughts on “if the mean of 17,19,23,16 a,18 and14is17.find the value of ,​”

1. value of a = 09

   hope you understand

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2. We know that the formula to find the mean is given by :-

   \text{Mean}=\dfrac{\text{Sum of observations}}{\text{Number of obserbvations}}Mean=

   Number of obserbvations

   Sum of observations

   Given : The mean of 17, 19, 23, 16, a, 18 and 14 is 17.

   i.e. Mean = 17

   Sum of numbers = 17+19+23+16+a+18+14=107+a

   Total numbers =7

   Put values in formula , we get

   \begin{gathered}17=\dfrac{107+a}{7}\\\\ 7\times17=107+a\\\\ 119=107+a\\\\ a=119-107=12\end{gathered}

   17=

   7

   107+a

   7×17=107+a

   119=107+a

   a=119−107=12

   Hence, the value of a is 12.

   # Learn more :

   Mean of 8 numbers is 38.4 and the mean of seven of them is 39.2 what is the eight number

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