Ans: Mean income is $30,000
Explanation:
Observations ( X ) = $10,000 , $21,000 , $29,000 , $40,000 and $50,000
We can use direct method to calculate mean.
= / N ( Where , = mean , N = Total number of observation )
= ( $10,000 + $21,000 + $29,000 + $40,000 + $50,000 ) / 5
= $150000 / 5
= $30,000
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