The variance of a distribution is the square of the standard deviation
The variance of the data is 2.2
<h3>How to calculate the variance</h3>Start by calculating the expected value using:
So, we have:
This gives
Next, calculate E(x^2) using:
So, we have:
The variance is then calculated as:
So, we have:
Approximate
Hence, the variance of the data is 2.2
Read more about variance at:
The correct statements about the equation are b, c, and e.
The highest power of the polynomial is called the degree of the polynomial.
We have to determine
Which equation accurately represents this statement?
Statement; Negative 3 less than 4.9 times a number, x, is the same as 12.8.
Then,
The equation accurately represents this statement is;
Hence, the correct statements about the equation are b, c, and e.
To know more about polynomial click the link is given below.