NDA 2022 Mathematics question
The coefficient of correlation between ages of husband and wife at the time of marriage for a given set of 100 couples was noted to be . Assume that all these couples survive to celebrate the silver jubilee of their marriage. The coefficient of correlation at that point of time will be
Answer: (C)
Solution
At the silver jubilee every husband's age and every wife's age has increased by the same constant,
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account