Question 1197875
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Answers:<ol type="a"><li><font color=red>Discrete</font></li><li><font color=red>Continuous</font></li><li><font color=red>Continuous</font></li><li><font color=red>Discrete</font></li></ol>Explanations:


(a) The number of times you catch a ball is some nonnegative whole number {0,1,2,3,...} which means we have a discrete set here. 
Between any two values is some finite subset. Eg: {1,2,3} is finite. 
The midpoint of adjacent values is not valid. 
It doesn't make sense to apply the midpoint between say 1 and 2 to get 1.5 catches. 


(b) In contrast to (a), the midpoint is valid for any two time values.  
For instance, if a basketball player plays somewhere between 10 and 11 minutes, then s/he could have played for 10.5 minutes.
This is why we consider time to be a continuous variable. 
Unlike discrete variables, continuous variables have infinitely many values between any two distinct items. 


(c) Same idea as part (b)


(d) Same idea as part (a)
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