Question

the mean of 11 numbers is 7 one of the nubers 13 is deleted what is the mean of remaining 10 numbers

Answer 1

Answer:

6.4

Step-by-step explanation:

Given, Mean of 11 numbers=7

i.e, $\frac{sum \ of\ 11\ numbers}{11} =7$

sum of 11 numbers =77

Now let's call the sum of 11 numbers as 's'

s=77

Since 13 is removed,

s-13 = 77-13 = 64

Now there are 10 numbers with sum 64

New mean is = $\frac{sum \ of\ 10\ numbers}{10} = \frac{64}{10}$ = 6.4

Answer 2

Step-by-step explanation:

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