19.99+8.99+35.99+49.99+49.99+39.99+99.99+79.99+35.99+19.99+49.99+29.99+49.99+54.99+35.99+49.99+19.99+8.99+29.99+35.99

Great job summing up the prices! Let's add them together:

\[
19.99 + 8.99 + 35.99 + 49.99 + 49.99 + 39.99 + 99.99 + 79.99 + 35.99 + 19.99 + 49.99 + 29.99 + 49.99 + 54.99 + 35.99 + 49.99 + 19.99 + 8.99 + 29.99 + 35.99 = 811.82
\]

Now, to find the mean, divide the total sum by the number of prices, which is 20:

\[
\text{Mean} = \frac{811.82}{20} = 40.59
\]

So, the mean cell phone case price is **$40.59**.

Would you like further details on this calculation, or have any other questions? 

Here are 5 questions you might find useful:
1. How does the mean price compare to the median of these prices?
2. What is the mode of the prices in this data set?
3. How would the mean change if the highest price were removed?
4. What is the variance and standard deviation of these prices?
5. How could Amit use this mean price to make decisions about future inventory?

**Tip:** Understanding how the mean can be influenced by extreme values (like very high or low prices) can help in making more informed business decisions.

Learn how to calculate the mean cell phone case price from a set of prices: $19.99, $8.99, $35.99, $49.99, $49.99, $39.99, $99.99, $79.99, $35.99, $19.99, $49.99, $29.99, $49.99, $54.99, $35.99, $49.99, $19.99, $8.99, $29.99, and $35.99. Understand the importance of mean in statistical analysis and its application in business decisions. Suitable for high school students learning statistics.

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