Explain the steps in excel to create and solve for:                                                                                                       Consider the following sample of the saving account balance of six high school students:
105, 123, 116, 65, 75, 99, 138
a. Calculate the sample mean
b. Calculate the sample variance
c. Calculate the sample standard deviation

To calculate the sample mean, sample variance, and sample standard deviation in Excel, follow these steps:

### Step 1: Input the Data
1. Open Excel.
2. In column A (or any column), input the saving account balances for each student:
   - A1: 105
   - A2: 123
   - A3: 116
   - A4: 65
   - A5: 75
   - A6: 99
   - A7: 138

### Step 2: Calculate the Sample Mean
1. In an empty cell (e.g., B1), enter the formula to calculate the **sample mean**:
   ```
   =AVERAGE(A1:A7)
   ```
2. Press **Enter**. The cell will display the mean of the sample data.

### Step 3: Calculate the Sample Variance
1. In another empty cell (e.g., B2), enter the formula for the **sample variance**:
   ```
   =VAR.S(A1:A7)
   ```
2. Press **Enter**. This will compute the sample variance.

### Step 4: Calculate the Sample Standard Deviation
1. In a third cell (e.g., B3), enter the formula for the **sample standard deviation**:
   ```
   =STDEV.S(A1:A7)
   ```
2. Press **Enter**. This will display the sample standard deviation.

### Explanation:
- **Sample Mean** is the average value of the dataset.
- **Sample Variance** measures the spread of the data points from the mean. It gives an idea of how much variability is in the sample.
- **Sample Standard Deviation** is the square root of the sample variance and represents the dispersion of the data relative to the mean in the same units as the data.

Would you like more detailed information on any of these steps?

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Here are 5 related questions:
1. How do you calculate the population mean in Excel?
2. What is the difference between sample variance and population variance in Excel?
3. Can you explain how to use Excel’s Data Analysis Toolpak to compute these statistics?
4. How would you interpret the results of the standard deviation in real-world terms?
5. What is the impact of outliers on mean and standard deviation?

**Tip:** Always remember to use `VAR.S` and `STDEV.S` for sample data, and `VAR.P` and `STDEV.P` for population data.

Explain the steps in excel to create and solve for: Consider the following sample of the saving account balance of six high school students: 105, 123, 116, 65, 75, 99, 138 a. Calculate the sample mean b. Calculate the sample variance c. Calculate the sample standard deviation

Learn how to calculate the sample mean, variance, and standard deviation using Excel with a sample of saving account balances from high school students: 105, 123, 116, 65, 75, 99, 138. Follow step-by-step instructions, including Excel formulas such as AVERAGE, VAR.S, and STDEV.S. Suitable for Grades 10-12 students.

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