After ovulation, the egg lives for about 12-24 hours. Fertilization can take place only during this time period, but the sperm needs at least 9-12 hours inside the woman's body to get ready.That means, your chances getting pregnant are minimal if you make love more than 12 hours after ovulation.ertilization can take place only during this time period, but the sperm needs at least 9-12 hours inside the woman's body to get ready. That means, your chances getting pregnant are minimal if you make love more than 12 hours after ovulation.
When we consider the relationship between two variables, there are three possibilities: 1  Both variables are categorical. 2  Both variables are quantitative. 3  One variable is categorical and the other is quantitative, for instance height and gender.
â¢ Both correlation and covariance are measures of relation between two random variables. Correlation is the measure of strength of the linearity of the two variables and covariance is a measure of the strength of the correlation.â¢ Correlation coefficient values are a value between -1 and +1, whereas the range of covariance is not constant, but can either be positive or negative.t is the most commonly used correlation coefficient and valid only for a linear relationship between the variables. If r=0 no relationship exist, and if râ¥0 the relation is directly proportional; the value of one variable increases with the increase of the other.