Question

the table presents detailed tax data for 10 individuals, including their respective incomes, taxes paid, deductions, and tax refunds.
what is the mean income of the sample tax data?
tax id | income ($) | tax paid ($) | deductions ($) | tax refund ($)
id001 | 78,340 | 12,640 | 9,120 | 600
id002 | 51,270 | 7,850 | 5,110 | 720
id003 | 114,950 | 23,200 | 11,650 | 1,310
id004 | 88,560 | 14,240 | 9,870 | 860
id005 | 47,380 | 6,750 | 4,750 | 520
id006 | 104,870 | 21,320 | 10,620 | 1,210
id007 | 67,490 | 10,740 | 7,640 | 760
id008 | 83,240 | 13,240 | 9,340 | 920
id009 | 91,760 | 15,210 | 10,120 | 1,010
id010 | 57,210 | 8,740 | 5,740 | 770
$75,000
$80,790
$78,030
$78,507

Explanation:

Step1: Sum all individual incomes

$78340 + 51270 + 114950 + 88560 + 47380 + 104870 + 67490 + 83240 + 91760 + 57210 = 785070$

Step2: Calculate mean (divide by sample size)

$\text{Mean} = \frac{\text{Total Income}}{\text{Number of Individuals}} = \frac{785070}{10}$

Answer:

$78,507$