TABLE 2 shows data for South African assessed taxpayers for the 2018 tax year - NSC Mathematical Literacy - Question 3 - 2021 - Paper 2

The probability P of randomly choosing an assessed taxpayer is given by the formula:

$P = \frac{\text{Number of taxpayers}}{\text{Total population}} = \frac{4 917 029}{57 730 000} \approx 0,085$

Rounded to three decimal places, the probability is approximately 0,085.

To find the mean monthly taxable income per taxpayer in the R70 001 to R350 000 group, we use:

$\text{Mean} = \frac{\text{Total taxable income}}{\text{Number of taxpayers}} = \frac{577 196 000}{2 856 643} \approx R202 096,397$

The mean monthly taxable income is approximately R202 096,40.

To find the percentage for the tax assessed in the R1 to R70 000 group, we use:

$\text{Percentage} = \frac{\text{Tax assessed}}{\text{Taxable income}} \times 100 = \frac{-16 302}{15 030} \times 100 = -1,09 \approx 0,0$

Since we'd round -1,09% to 0,0%, this explains why the tax assessed percentage is shown as 0,0%.