Thread: Sorry, One More Probability Word Problem!

Ok, this is the last one I have. Could someone please brake probability down to me? This is hopefully the last probability problem. -Probability problem #3-


What is the probability that when 3 spinners with the numbers 1-3
are spun, that at least two will land on a prime number?

Thank you very much!

Originally Posted by glue'd'n'math

Ok, this is the last one I have. Could someone please brake probability down to me? This is hopefully the last probability problem. -Probability problem #3-


What is the probability that when 3 spinners with the numbers 1-3
are spun, that at least two will land on a prime number?

Thank you very much!

Same idea as previous questions, although more tedious this time.

List all the possibilities - carefully! (there are 3^3 = 27):

1, 1, 1
1, 1, 2
1, 1, 3

etc. etc.

Now count how many of these have at least two prime numbers (NB: 2 is a prime number).

etc.