Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

a deck of playing cards has four suits, with thirteen cards in each sui…

Question

a deck of playing cards has four suits, with thirteen cards in each suit consisting of the numbers 2 through 10, a jack, a queen, a king, and an ace. the four suits are hearts, diamonds, spades, and clubs. a hand of five cards will be chosen at random. which statements are true? check all that apply. the total possible outcomes can be found using $_{52}c_5$. the total possible outcomes can be found using $_{52}p_5$. the probability of choosing two diamonds and three hearts is 0.089. the probability of choosing five spades is roughly 0.05 the probability of choosing five clubs is roughly 0.0005.

Explanation:

Brief Explanations
  1. For \(_{52}C_5\) and \(_{52}P_5\):
  • When choosing a hand of five cards, the order of the cards in the hand does not matter. The combination formula \(_{n}C_{r}=\frac{n!}{r!(n - r)!}\) is used for unordered selections, and the permutation formula \(_{n}P_{r}=\frac{n!}{(n - r)!}\) is used for ordered selections. Since a hand of cards is an unordered set, the total number of possible 5 - card hands from a 52 - card deck is given by \(_{52}C_5\), not \(_{52}P_5\). So the first statement is true and the second is false.
  1. Probability of two diamonds and three hearts:
  • The number of ways to choose 2 diamonds from 13 diamonds is \(_{13}C_2=\frac{13!}{2!(13 - 2)!}=\frac{13\times12}{2\times1}=78\).
  • The number of ways to choose 3 hearts from 13 hearts is \(_{13}C_3=\frac{13!}{3!(13 - 3)!}=\frac{13\times12\times11}{3\times2\times1}=286\).
  • The number of ways to choose 5 cards from 52 cards is \(_{52}C_5=\frac{52!}{5!(52 - 5)!}=\frac{52\times51\times50\times49\times48}{5\times4\times3\times2\times1}=2598960\).
  • The number of favorable outcomes (2 diamonds and 3 hearts) is \(_{13}C_2\times_{13}C_3=78\times286 = 22308\).
  • The probability \(P=\frac{22308}{2598960}\approx0.00858\)? Wait, no, wait, I made a mistake. Wait, \(_{13}C_2=\frac{13!}{2!11!}=\frac{13\times12}{2}=78\), \(_{13}C_3=\frac{13!}{3!10!}=\frac{13\times12\times11}{6}=286\), and \(78\times286 = 22308\). And \(_{52}C_5 = 2598960\). Then \(\frac{22308}{2598960}\approx0.00858\)? But the statement says 0.089. Wait, maybe I miscalculated. Wait, no, maybe the user made a typo or I messed up. Wait, no, let's recalculate: \(_{13}C_2 = 78\), \(_{13}C_3=286\), \(78\times286 = 22308\). \(22308\div2598960\approx0.00858\), which is not 0.089. Wait, maybe I made a mistake in the combination. Wait, no, maybe the problem is about two diamonds and three hearts, but maybe I should consider that the total number of ways to choose 2 diamonds and 3 hearts is \(_{13}C_2\times_{13}C_3\), and the total number of 5 - card hands is \(_{52}C_5\). Wait, maybe the correct calculation is: \(_{13}C_2=\frac{13\times12}{2}=78\), \(_{13}C_3=\frac{13\times12\times11}{6}=286\), \(78\times286 = 22308\), \(22308\div2598960\approx0.00858\), so this statement is false? Wait, maybe I made a mistake. Wait, no, let's check again. Wait, the formula for probability is \(\frac{\text{number of favorable outcomes}}{\text{total number of possible outcomes}}\). The number of favorable outcomes for 2 diamonds and 3 hearts is \(_{13}C_2\times_{13}C_3\), and total outcomes is \(_{52}C_5\). So \(_{13}C_2 = 78\), \(_{13}C_3 = 286\), product is 22308. \(_{52}C_5=2598960\). \(22308\div2598960\approx0.00858\), so the third statement is false.
  1. Probability of five spades:
  • The number of ways to choose 5 spades from 13 spades is \(_{13}C_5=\frac{13!}{5!(13 - 5)!}=\frac{13\times12\times11\times10\times9}{5\times4\times3\times2\times1}=1287\).
  • The probability \(P=\frac{_{13}C_5}{_{52}C_5}=\frac{1287}{2598960}\approx0.000495\approx0.0005\), not 0.05. So the fourth statement is false.
  1. Probability of five clubs:
  • The number of ways to choose 5 clubs from 13 clubs is \(_{13}C_5 = 1287\) (same as five spades, since there are 13 clubs).
  • The probability \(P=\frac{_{13}C_5}{_{52}C_5}=\frac{1287}{2598960}\approx0.000495\approx0.0005\). So the fifth statement is true. Also, the first statement (\(_{52}C_5\) for total outcomes) is true. Wait, let's re - evaluate the third statement. Wait, maybe I made a mistake in the third statement. Wait, two diamonds and three hearts: number of diamonds…

Answer:

  • The total possible outcomes can be found using \(_{52}C_5\).
  • The probability of choosing five clubs is roughly 0.0005.