Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. An experiment was conducted to determine whether a deficiency of carbon dioxide in the soil affects the phenotype peas. Listed below are the phenotype codes where \( 1= \) smooth-yellow, \( 2= \) smooth-green, 3 = wrinkled-yellow, and 4 = wrinkled-green. Do the results make sense? 3 (a) The mean phenotype code is 2 . (Round to the nearest tenth as needed.) (b) The median phenotype code is (Type an integer or a decimal.)

To accurately determine the **median phenotype code**, we need the complete set of sample data from your experiment. The median is the middle value of an ordered dataset. Here's how you can find it: ### Steps to Find the Median: 1. **List All Data Points**: Ensure you have all the phenotype codes recorded from your experiment. For example, your dataset might look something like this: ``` 1, 2, 2, 3, 4, 2, 3, 1, 4, 2 ``` 2. **Order the Data**: Arrange the numbers in ascending order. ``` 1, 1, 2, 2, 2, 2, 3, 3, 4, 4 ``` 3. **Determine the Middle Position**: - If the number of data points (**n**) is odd, the median is the middle number. - If **n** is even, the median is the average of the two middle numbers. 4. **Calculate the Median**: - **Odd Number of Data Points**: For example, if **n = 9**, the median is the 5th number. - **Even Number of Data Points**: For example, if **n = 10**, the median is the average of the 5th and 6th numbers. ### Example Calculation: Assuming your dataset has **10** phenotype codes ordered as: ``` 1, 1, 2, 2, 2, 2, 3, 3, 4, 4 ``` - The 5th and 6th numbers are both **2**. - Median = (2 + 2) / 2 = **2.0** ### Conclusion: If your dataset has an even number of observations and both middle numbers are the same, the median will be that number. Based on your provided information that the mean is **2**, it's reasonable to suspect that the median might also be around **2**, assuming a symmetric distribution. However, to confirm the median, please ensure you have all the data points and follow the steps outlined above. If you provide the complete set of phenotype codes, I can help you calculate the exact median.