The circle graph above gives the distribution of salad dressing chosen by customers at a…

The circle graph above gives the distribution of salad dressing chosen by customers at a…

I can’t determine the difference without the graph — please provide the percentages or angle measures for the Italian and Vinaigrette slices (or upload the circle graph).

Explanation / How to compute once you give the data

  • If you are given percentages: let $p_I$ and $p_V$ be the fractions (as decimals) choosing Italian and Vinaigrette. Then

$$\text{difference}=200\cdot|p_I-p_V|.$$
Example: if Italian is $30\%$ and Vinaigrette is $18\%$, then difference $=200\cdot(0.30-0.18)=24$ customers.

  • If you are given central angles (degrees): let $d_I$ and $d_V$ be the slice angles. Convert to fractions via $p=\dfrac{d}{360}$, so

$$\text{difference}=200\cdot\left|\dfrac{d_I-d_V}{360}\right|.$$
Example: if $d_I=108^\circ$ and $d_V=65^\circ$, difference $=200\cdot\frac{43}{360}\approx23.9\approx24$ customers.

Send the slice percents or angles (or the image) and I’ll compute the closest daily difference.

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