Chapter 3.1, Problem 30E

To determine

To select:the best answer from the given options

Answer to Problem 30E

The correct answer is (b) 1

Explanation of Solution

Given:

The correlation between the ages of husband and wife if women married 2 years older men

1. 2
2. 0.5
3. 1
4. 0
5. Can’t tell without seeing the data

If we take age of woman as X and age of their husband as Y then relation between their ages can be given as:

Y = X + 2

You could predict the husband’s height exactly by knowing the woman’s height, hence we can say that both variables are perfectly correlated and correlation (r) between them would be 1.

Conclusion:

Thus the correct answer is (b)1