Total blood cholesterol level was measured for each of 10 adults. Here are the 10 measurements (in $\mathrm{mg}/\mathrm{dL}$ ).
$$224,194,238,148,172,149,140,209,220,151$$

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$$\text{Unknown environment 'tabular'}$$ & \
\hline $$\text{Unknown environment 'tabular'}$$ & \
\hline $$\text{Unknown environment 'tabular'}$$ & zero modes \
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$\times 5$

Step 1 ：First, arrange the data in ascending order: 140, 148, 149, 151, 172, 194, 209, 220, 224, 238

Step 2 ：Since there are 10 data points, the median is the average of the 5th and 6th data points. So, calculate the median using the formula $\frac{172+194}{2}$

Step 3 ：$\boxed{{\displaystyle 183}}$ is the median of this data set in mg/dL

Step 4 ：To find the mean of the data set, add up all the data points and divide by the number of data points. So, calculate the mean using the formula $\frac{140+148+149+151+172+194+209+220+224+238}{10}$

Step 5 ：$\boxed{{\displaystyle 184.5}}$ is the mean of this data set in mg/dL

Step 6 ：A mode is a value that appears most frequently in a data set. Looking at our data set, we can see that no value is repeated. Therefore, this data set has zero modes