SOLUTION: The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into

Question 1075832: The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly selected.
(a) Find the probability of selecting a number less than 10 or a number written in blue. Show your work.
(b) Find the probability of selecting a number written in red or a multiple of 20. Show your work.
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
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The numbers 1 through 50 are written with red marker on slips of paper while the numbers 51 through 100 are written
with blue marker on slips of paper. All the papers are put into a bag and shuffled. One card is randomly selected.

(a) Find the probability of selecting a number less than 10 or a number written in blue. Show your work. 


,   or   ,   or 0.6.


60 = 50 + 10.


50 is the amount of numbers written in blue. 
10 is the amount of numbers between 1 and 10.


100 is the dimension of the total space of outcomes.



(b) Find the probability of selecting a number written in red or a multiple of 20. Show your work. 


,   or   0.53.


53 = 50 + 3.


50 is the amount of numbers written in red. 
3 is the amount of numbers that are multiple of 20 and greater than 50.


100 is the dimension of the total space of outcomes.

I am sure you would be able to answer these questions on your own had you give a labor to yourself to think on the question during 1 minute.

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