Question

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?

Answer 1

https://www.dropbox.com/s/nxwx970tcijgm46/Screenshot%202015-06-16%2014.24.35.png?dl=0

Answer 2

@Skylar0001

Answer 3

@Haseeb96

Answer 4

@mathstudent55

Answer 5

I wish i could help you but i really didnt pay attention in class when i was learning probability sorry :(

Answer 6

You are picking a card out of 50.
Now you need to find out how many cards are the desirable outcome.

Answer 7

12?

Answer 8

How many cards are less than 10?

Answer 9

2?

Answer 10

1,2,3,4,5,6,7,8,9
Less than 10: 9 cards

Answer 11

Aren't all numbers 1 through 9 less than 10?
That means there are 9 cards with numbers less than 10.

Answer 12

Now we need to see how many cards are multiples of 12.
Which numbers from 1 to 50 are multiples of 12?

Answer 13

um 2 6 3 4

Answer 14

and 12

Answer 15

oh multiples

Answer 16

24, 36, and 48 am i right @mathstudent55

Answer 17

Also, 12 itself.

Answer 18

12 is a multiple of itself, so the multiples of 12 from 1 to 50 are
12, 24, 36, and 48

Answer 19

That makes sense.

Answer 20

Now 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?

Answer 21

13/50 ? C

Answer 22

Right, because you can't simplify it anymore.

Answer 23

Correct.
p(choosing a number less than 50 or choosing a multiple of 12) = 13/50

Answer 24

Thank You!!! ^u^