Question 1. For given two regression equations x = – 0.4y + 6.4 and y = – 0.6x + 4.6, The mean of y is
Question 2. Chi-square is used to analyze:
Question 3. Calculate the co-efficient of correlation between x and y for the following data :
Question 4. Ten individuals are chosen at random from a population and their heights are found to be in inches 63, 63, 64, 65, 66, 69, 70, 70, 71. Discuss the suggestion that the Mean height of universe is 65. For 9 degree of freedom t at 5% level of significance = 2.262. How do you find X and Y in regression?The Linear Regression Equation
The equation has the form Y= a + bX, where Y is the dependent variable (that's the variable that goes on the Y axis), X is the independent variable (i.e. it is plotted on the X axis), b is the slope of the line and a is the y-intercept.
What are the two lines of regression?Regression Lines : Regression line is that line which gives the best estimate of dependent variable for any given value of independent variable. If we take the case of two variables X and Y we shall have two regression lines as the regression of X on Y and the regression of Y on X.
|
For given two regression equations x = - 0.4y + 6.4 and y = - 0.6x + 4.6, the mean of x is 4 5 6 7
Urheberrechte © © 2024 defrojeostern Inc.
