Find the mean and variance for each of the data :
`"First 10 multiples of 3."`

Explanation

To find the mean and variance of the first 10 multiples of 3, we can follow these steps:

### Step 1: Identify the Data
The first 10 multiples of 3 are:
- 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

### Step 2: Calculate the Mean (x̄)
The mean is calculated using the formula:
...