Question

There are 16 number-tiles in a jar, each marked with a different number from 1–16. If you pull out one tile at random, what is the probability that the number you pull will be an even number or an odd prime number?

0.063
0.813
0.219
0.875

Answer 1

@Mertsj

Answer 2

What are the even numbers from 1 to 16??

Answer 3

2,4,6,8,10,12,14,16

Answer 4

How many??

Answer 5

8?

Answer 6

Yep..

So probability of even number would be : 8/16

Okay??

Answer 7

yep, got that part

Answer 8

Now how many odd prime numbers are there from 1 to 16?

Answer 9

6?

Answer 10

Write those 6..

Answer 11

1,3,5,7,11,13

Answer 12

1 is not a prime number, it is odd but not a prime number..

Remember: The smallest prime number is 2, and it is the only even prime number..

Getting?

Answer 13

Oh yeah, sorry forgot about that :P

Answer 14

So 5..

Right??

So what will be the probability of odd prime number??

Answer 15

Yes, 5
5/16 right?

Answer 16

So together that is 13/16, or 0.813, or b?

Answer 17

Yes add them and do the calculations..

Answer 18

13/16 is right and go ahead on your own..

Answer 19

Yep, 0.8125 or 0.813

Answer 20

sweet, thanks, simpler than i thought :D

Answer 21

You are welcome dear...