Question

If the sum and mean of data are 407 and 11 respectively then the number is observation in the data is

Answer 1

Answer:

37

Step-by-step explanation:

$mean \: = \frac{sum}{number \: of \: observations}$

Therefore,

$= > 11 = \frac{407}{x} \\ = > x = \frac{407}{11} \\ = > x = 37$

Answer 2

The number of observation in the data is 37

Solution:

The mean of a data set is given as:

$Mean = \frac{ \text{ sum of all observations }}{ \text{ total number of observations }}$

Given that,

The sum and mean of data are 407 and 11 respectively

To find: number of observation in the data

From given,

sum of observations = 407

Mean = 11

Substituting the values in formula,

$11 = \frac{407}{\text{ total number of observations }}\\\\\text{Total number of observations } = \frac{407}{11}\\\\\text{Total number of observations } = 37$

Thus, number of observation in the data is 37

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