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gabbyalicorn
 one year ago
Cards with the numbers 1 through 50 are placed in a box and thoroughly shuffled.
What is the probability of randomly selecting a card with a number less than 10 or a multiple of 12?
gabbyalicorn
 one year ago
Cards with the numbers 1 through 50 are placed in a box and thoroughly shuffled. What is the probability of randomly selecting a card with a number less than 10 or a multiple of 12?

This Question is Closed

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.2https://www.dropbox.com/s/nxwx970tcijgm46/Screenshot%2020150616%2014.24.35.png?dl=0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I wish i could help you but i really didnt pay attention in class when i was learning probability sorry :(

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1You are picking a card out of 50. Now you need to find out how many cards are the desirable outcome.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1How many cards are less than 10?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.11,2,3,4,5,6,7,8,9 Less than 10: 9 cards

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Aren't all numbers 1 through 9 less than 10? That means there are 9 cards with numbers less than 10.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now we need to see how many cards are multiples of 12. Which numbers from 1 to 50 are multiples of 12?

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.224, 36, and 48 am i right @mathstudent55

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Also, 12 itself.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.112 is a multiple of itself, so the multiples of 12 from 1 to 50 are 12, 24, 36, and 48

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.2That makes sense.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Now you see you have a total of 9 + 4 = 13 cards that are you desired outcome. The probability of an event happening is the number of desired outcomes divided by the total number of possible outcomes. You have 13 desired outcomes, and a total of 50 outcomes. What is the probability?

gabbyalicorn
 one year ago
Best ResponseYou've already chosen the best response.2Right, because you can't simplify it anymore.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.1Correct. p(choosing a number less than 50 or choosing a multiple of 12) = 13/50
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