The statements labeled 1 and 4 are accurate. To easily see the center and radius of the circle, we can modify the given equation to fit its standard format. Once in standard form, we can contrast it with the standard equation to find the circle's center and radius. The coordinates for the center are determined to be (1,0) and the radius is represented by
. With this understanding, we can evaluate each statement. 1. The circle's radius is 3 units—this is true. 2. The circle's center is located on the y-axis—this is incorrect, as the center at (1,0) indicates it is on the x-axis. 3. The standard equation is (x - 1)² + y² = 3—this is false; the correct equation is (x - 1)² + y² = 9. 4. The circle's radius matches that of the circle with the equation x² + y² = 9—this statement is correct, as both radii equal 3.
<span>9 ten thousandths equals 0.0009, which can be expressed as 9 × 10 to the power of -4</span>
Answer:
The correct choice is:
Simplifying and summarizing data
Step-by-step explanation:
By leveraging sample data, statistical techniques such as linear regression enable us to draw conclusions about a larger population. However, descriptive statistics solely provide an overview of general traits within a sample and cannot be applied to broader populations exclusively based on them.
Descriptive statistics (DS) can describe both dependent and independent variables. For instance, if you wish to forecast an individual's income (dependent) in relation to age and education level (independent), descriptive statistics could illustrate both the age of your sample and income levels.
In essence, the primary function of DS is to condense data to make it easier to understand and analyze.
