P.O.W \#2 STATISTIC S AND PROBABILITY 1. The following cards are placed in a box. B 9 \( \square \) k 5 2 R z 8 W 3 If Joemar will pick a card without looking inside the box, find the probability that the card: a. contains the number 3 b. contains a letter c. is a number card d. is not a number card e. contains a shape
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To solve for the probabilities, let's first tally up the total number of cards in the box. There are 9 cards in total: B, 9, \( \square \), k, 5, 2, R, z, 8, and W, 3. a. **Probability of picking the card containing the number 3:** There is only 1 card with the number 3. So, the probability is \( \frac{1}{9} \). b. **Probability of picking a card that contains a letter:** The letters in the box are B, k, R, z, and W. That's a total of 5 letter cards. Therefore, the probability is \( \frac{5}{9} \). c. **Probability of picking a number card:** The number cards are 9, 5, 2, 8, and 3 — 5 cards total. So, the probability is \( \frac{5}{9} \). d. **Probability of not picking a number card:** Since we have 4 cards that aren't numbers (B, k, R, z, and W), the probability is \( \frac{4}{9} \). e. **Probability of picking a card that contains a shape:** There is only 1 card with a shape, \( \square \). Hence, the probability is \( \frac{1}{9} \). Now that we've calculated each of these probabilities, Joemar can confidently reach into the box!