Question

which of the following best describes statistics? to predict the value of one variable based on the value of another variable to calculate the probability of an event. to find the mean of a data set. to determine the mode of a data set. question 6 given the regression equation y=2x+5, what is the value of y when x=3?

Explanation:

Step1: Substitute x = 3 into the equation

We have the regression equation \( y = 2x + 5 \). Substitute \( x = 3 \) into this equation.

Step2: Calculate the value of y

When \( x = 3 \), we calculate \( y = 2\times3 + 5 \). First, calculate \( 2\times3 = 6 \), then add 5: \( 6 + 5 = 11 \).

Answer:

11