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Mathematics 20 Online
OpenStudy (howard-wolowitz):

Which of the follwoing is an example of a continous random variable? A. Height of a tree B. Number of cards randomly drawn by a person from a deck C. Number of people taking math classes at a college D. Amount of boats racing in a boating event

jimthompson5910 (jim_thompson5910):

what are your thoughts on this? how far did you get?

OpenStudy (howard-wolowitz):

my thoughts r telling me its B

OpenStudy (howard-wolowitz):

since its defined like this- A continuous random variable is a random variable where the data can take infinitely many values.

jimthompson5910 (jim_thompson5910):

ask yourself this: is it possible to draw out a fraction of a card?

OpenStudy (howard-wolowitz):

but everything else cant be infinite

jimthompson5910 (jim_thompson5910):

discrete = a finite number of values (eg: 1,2,3,4,5,6). This is handy for counting people, items, etc. continuous = infinite number of values and it includes every value between any two points. For example, 1.2 or 1.7 are valid if you're considering values between 1 and 2. There are infinitely more values to consider between 1 and 2. This is handy for weighing items, measuring height, measuring time, and so much more

OpenStudy (howard-wolowitz):

i guess height of a tree would be a better fit then

jimthompson5910 (jim_thompson5910):

`Number of cards randomly drawn by a person from a deck` this is discrete because you can't take out a fraction or decimal portion of a card. You can only take out a whole card. There are finitely many of them. If you're only dealing with one deck, the max is 52 cards

jimthompson5910 (jim_thompson5910):

`i guess height of a tree would be a better fit then` yes the height of a tree is an example of a continuous random variable

OpenStudy (howard-wolowitz):

thank you for helping me

jimthompson5910 (jim_thompson5910):

no problem

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