Probability - Maths

Question

These cards are put into a bag:

1 2 3 4 5 6 7 8 9 10 11 12

What is the probability of choosing a card that has a digit 1 on it?

What is the probability of choosing a card that does not have a digit 1 on it?

Answer 1

Hi Samuel A.,

You probably should be able to run these probabilities yourself? How many cards are there total (12)? And how many of those cards have a digit "1" (anywhere) on them (exactly 4 of them). So do the division, and express as a decimal value or as an exact fraction. So the probability that a (single) drawn card does NOT have a 1 on it is = 1 MINUS the value you just found for the probability that it DOES.

Of course, if you did draw a card with a 1, you could shrug it off with "I guess it was just in the cards."?? (that means, fated to happen)

-- Cheers, -- Mr. d.