Find the missing frequency 'x' — task. Mathematics CBSE, Class 10.

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Answer variants:

The number of people(in thousands) living in a locality is given below. Determine the value of "

$x$ " if the mean of the following data is 35.

Age	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$	$50 - 60$	$60 - 70$
Number of people	8	9	$x$	4	2	9	10

The value of the variable is

$1$

Did you find an error?

6. Find the missing frequency 'x'