one digit from the number 3,474,554 is written on each of seven cards. What is the probability of drawing a card that shows s 5?
2/7
how do you work it out
Number 5 appears 2 times.
The total number of digits is 7.
2/7
Correct! To find the probability of drawing a card with the digit 5, you would divide the number of cards with the digit 5 by the total number of cards, which is 7. Since there are two cards with the digit 5, the probability is 2/7.
Well, let's do some clown math, shall we?
Since there's only one 5 in the entire number, and one 5 on each of the cards, we can say that there's a 1 in 7 chance of drawing a card with a 5. So, if we simplify that fraction, the probability of drawing a card with a 5 is approximately 1 out of 7.
Just remember, probabilities can be tricky, just like trying to juggle rubber chickens.
To find the probability of drawing a card that shows a 5, we need to first determine the total number of possible outcomes and then find out the number of favorable outcomes.
Total number of possible outcomes: There are 7 cards with one digit each, and each digit can be any number from 0 to 9 (excluding 5 because we want to find the probability of drawing a 5). Therefore, the total number of possible outcomes is 9 (0, 1, 2, 3, 4, 6, 7, 8, and 9) for each of the 7 cards.
Total number of favorable outcomes: Since we are looking for the probability of drawing a 5, we need to count the number of cards in which the digit is 5. In this case, there is only one card with the digit 5.
Now that we have the total number of possible outcomes (9 choices for each card) and the number of favorable outcomes (1 choice for the 5 card), we can calculate the probability.
Probability = Number of favorable outcomes / Total number of possible outcomes
Probability = 1 / 9^7
(probability is 1 out of 9 raised to the power of 7 because there are 7 cards)
Simplifying further, the probability is approximately 0.000000159.