Math, asked by kirubashinisekar, 1 year ago

The mean of 68 numbers is 18. If each number is divided by 6, find the new mean. Find the relation between the new mean and the old mean​

Answers

Answered by bijaymourya8114
8

 = new \: mean =  \frac{old \: mean}{6}  \\  = new \: mean =  \frac{18}{6}  \\  = new \: mean \: will \: be \: 3

Answered by sushiladevi4418
9

New mean is less than the old mean.

Step-by-step explanation:

\textrm{Mean } = \frac{\textrm{Sum of all observations}}{\textrm{Number of Observations}}

Now, mean of 68 numbers is 18.

⇒  {68} = \frac{\textrm{Sum of all observations}}{18}

So, sum of 18 numbers = 68 x 18 = 1224

Now, each number is divided by 6 .

So, new sum is 1224 / 6 = 204

So, new mean = New Sum / 18  

= 204 / 18 = 11.33

So, new mean is less than the old mean.

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