Question

What is the mean of the following set of numbers?121, 347, 45, 21, 300, 614, 312, 333, 421

Answer 1

Hi friend, Here is the required answer:-

Mean =. Sum of all observations/ Total no. of observations.

Mean= 121+347+45+21+300+614+ 312+333+421/ 9.

Mean = 23493/9= 2610.3.


Hope this helps you...

Answer 2

Given :

9 numbers with values :

121 , 347 , 45 , 21 , 300, 614 , 312 , 333 , 421

To Find :

Mean of the given numbers = ?

Solution :

∴Since we know that mean of  a given no of observations is equal to the sum of given observations divided by the number of observations i.e. :

Mean = sum of given observations / total no of given observations

So according the mean of the given nos will be :

$Mean = \frac{(121+347+45+21+300+614+312+333+421)}{9}$

$Mean = \frac{2514}{9}$

$Mean = 279.33$

So the mean of the given nos is 279.33