A scatter plot can show a positive relationship, a negative relationship, or no relationship. If the points on the scatter plot seem to form a line that slants up from left to right, there is a positive relationship or positive correlation between the variables.
In 52-card deck there are 36 numbered card and 52/4=13 spade card so probability that you are dealt a numbered card is 36/52 =9/13 a spade card is 13/52=1/4
